Sunday, March 22, 2020

Post #177 - EPIC Bay Area bike-birding update including San Mateo Laysan Albatross

I wish I was reaching you under different circumstances, but I hope this post offers diversion against coronavirus/COVID-19-prescribed inactivity. I've been on the bike a lot this year - 716 miles on a date when I'd logged < 300 last year - and I'll use this post to highlight my recent county-birding exploits, the game of maximizing species totals in each individual municipality (below table). The San Mateo section is a bit involved, but the Santa Cruz, Santa Clara, San Francisco, and Alameda are comparative snippets. If nothing else, check out the maps to see where I've explored.

San Mateo County
I'll start in my home San Mateo County where I had 264 species of of January 1st. Minus quick late-afternoon spins around Coyote Point park behind my apartment, I don't do much bike-birding in my home county because I'm focused on exploring farther afield. That said, I've had two epic days of San Mateo bike-birding this calendar year, those yielding a combined 7 new birds. I chronicled the first of these, January 14th, in a previous post, but I'll offer the following map as a reminder.

My January 14th ride down the San Mateo Coast

More recently, on March 13, I rode a very similar but slightly-longer route in pursuit of a continuing dark phase Rough-legged Hawk at Pigeon Point. Reaching Pigeon is rarely a problem, but returning home is usually a royal pain-in-the-ass because the prevailing northwest winds build through the afternoon and impede my return. Rather than ride into headwinds when I am tired, I only ride to Pigeon on south winds; there's little impediment early in the day but I get a nice push going home (see below graphic). The one caveat is south winds imply rain, so I have to know I can get down-and-back before it starts pouring. We had no rain - and hence no south wind - in February, so that's why I waited so long to pursue the long-staying hawk.
It took 2 hours and 40 mins to overcome the coastal mountains and cover the 35 miles to Pigeon, the wind gathering through the 9am hour, and a quick scan of nearby power poles revealed the hawk as I arrived. Can't beat a short search after a long ride!

Rough-legged Hawk (dark phase)
Bay Area bike bird #304 / San Mateo bike bird #269  

The hawk handled, I set to seawatching for Black-legged Kittiwake, a species I've missed despite making several late-February- and early-March-trips to Half Moon Bay for it over the last three years. Malia Defelice and Chris Hayward joined my vigil, and we chatted while scanning a relatively quiet ocean against gathering winds. Scanning the horizon, I nearly soiled myself when I spotted an albatross, the bird banking to reveal the light underwings with wide, smudgy wing margins indicative of Laysan. Chris and Malia got onto the bird, and we enjoyed distant but diagnostic views as the bird soared out of view. I've seen loads of Black-footed and quite a few Laysans on pelagics, but this was my first albatross from shore. It was Bay Area bike bird #305 and San Mateo bike bird #270. Though kittiwake didn't show at Pigeon, there was one resting in Pescadero Marsh on my return ride - kismet!

Black-legged Kittiwake
Bay Area bike bird #306, San Mateo bike Bird #271

My recent March 13 ride to Pigeon Point

Santa Cruz County
Santa Cruz County has been on my radar for a while but presents significant access challenges; it's ~43 riding miles to the nearest point of coastal access or ~32 miles (plus a huge climb) to the nearest point of interior access (right map). Either round-trip ride doesn't leave much time or energy for birding, so I back-burnered Santa Cruz plans until some recent Santa Clara bike-birding business brought me within striking distance on January 19th. The way the county lines fall (black lines, left map), I needed to go very far south for Santa Clara access to Varied Thrush and Red-breasted Nuthatch at Monte Bello OSP (VATH, RBNU on left map). Given the northern reaches of Santa Cruz County are only 8 miles beyond Monte Bello, I decided to extend my Santa Clara efforts to include Santa Cruz. I could only allow 90 minutes in relatively specialized ridge/redwood habitat, but I tallied 26 species, Red Crossbill and Ring-necked Duck among them. I'm hoping to reach the coastal side of the county as days lengthen, so stay tuned for that. 

January 19th ride to Santa Clara + Santa Cruz

Santa Clara County
As referenced in the Santa Cruz section above, Monte Bello OSP yielded Varied Thrush and Red-breasted Nuthatch for Santa Clara bike-birds #187 and #188. It was a haul to reach that elevated point, so I'm not sure when I'll be attempting that ride again. More easily accessed is Pearson-Arastradero Preserve, a great oak-savannah habitat and possibly my favorite Santa Clara birding spot. Pearson is an easy 20-mile ride from my apartment, loaded with birds, and usually devoid of people. My February 7th visit yielded Common Merganser and Ferruginous Hawk, Santa Clara bike-birds #189 and #190. Both were too far for decent photos, even with the scope.

San Francisco County
I've made several trips to SF so far in 2020. Two of those were explicitly motivated by the Golden Gate Park Red-naped Sapsucker - a tricky bird which didn't show on either day I visited - but I still found a nice collection of stuff for my SF bike list on each trip. Rather than offer lengthy recounts of each of those rides, I'll offer maps for context. Currently at 199 SF bike-birds, I hope to reach 200 sometime soon, lockdown permitting. Species in red are those for which I looked but ultimately missed.

January 11th - the grosbeak was 
also Bay Area bike-bird #300.

January 31st, my first miss on the sapsucker

February 21st, my second miss on the sapsucker

Alameda County
I'd only biked to Alameda four times before visiting for the fifth time earlier this month, so there was a lot of low-hanging county-bird fruit on that visit. Exploring Dry Creek Regional Park for the first time, a two-and-a-half hour walk yielded 11 Alameda birds including Sharp-shinned Hawk, Hairy Woodpecker, Warbling Vireo, Oak Titmouse, and Pine Siskin. Coupled with Blue-winged Teal, Canvasback, Northern Rough-winged Swallow, and Lincoln's Sparrow added at Coyote Hills on my ride home, my 60-mile ride netted me 15 county birds to raise my cumulative total to 151. I'm hoping to return during spring migration, so that will be another nice bump if that happens. Again, lockdown permitting.

Dry Creek Regional Park

March 19th ride to Alameda

So yeah, lots of maps representing lots of miles! I'm not sure what the virus is going to dictate in the next few weeks, but I'll be out for one long ride each week as long as conditions and rules allow. Stay healthy these next few weeks.

Thursday, March 12, 2020

Post #176 - A weekend of birding with unicycle Big Year madman John Patten Moss!

When John Patten Moss (aka JP) called me last fall to discuss his idea for a unicycle Big Year, I thought he was smoking crack. I pleaded with him to abandon the naive dream, repeatedly emphasizing his twenties should be reserved for child rearing and corporate ascendance, but I was unable to dent his cycling aspiration or birding resolve. I explained transcontinental exploration and personal challenge worthless against safer prospects at Initech or similarly reputable employer, and I warned his self-powered aspirations would render him a sad and incidental footnote in the Big Year landscape. Fortunately, he didn't listen to anything I advised, and we shared an extended bout of cycle-birding as he passed through the Bay Area this weekend.

JP's unicycle wheel makes by bike tires look like toys

JP departed Olympia, Washington on January 1st, followed the Pacific Coast south, and claimed 174 species by his Golden Gate crossing on Friday, March 6th (follow his progress on his blog). We rendezvoused at Heron's Head Park that afternoon and swapped stories as we searched for the long-staying Rock Sandpiper, the cooperative bird appearing at our feet after a ten-minute search. The 'must-have' ticked, we rolled south toward my San Mateo apartment for the night.

JP's Digi-binoc'd Rock Sandpiper at Heron's Head

I was surprised how well JP handled the few short hills between Heron's Head and my place, his unicycle's lack of gears the biggest variable when we discussed his plans last fall. Until I rode with him, I didn't appreciate how well his huge, 36-inch wheel rolled or how he could leverage his single-point of road contact to lean into hills in ways my bicycle prevented. He conceded he need to walk up steep sections, but I understood how he survived the ups and downs of the Oregon and California Coast after riding with him. While his unicycle managed uphills better than I imagined, he didn't reap nearly the downhill momentum as my bicycle did. However, the most difficult aspect of the production is mounting the huge wheel, and I see why JP hates stopping at red lights on his unicycle even more than I do on my bicycle. Check out the following video!

JP Moss mounts his 36-inch unicycle

The morning of Saturday, March 7th was rainy, so we used those AM hours to bird Coyote Point Park behind my apartment. Among birds we added to his list - Sora, Nuttall's Woodpecker, Lesser Goldfinch, others - Iceland (Thayer's) Gull was notable; JP had no experience with the species/subspecies, so it was nice we could ID that sometimes-tricky bird together.

We used the afternoon to bird the bayshore and look for the Tufted Duck at Nob Hill Pond in Redwood Shores. I'd seen the now-annual bird on low tides in years past, but it was nowhere to be found on the Saturday afternoon ebb (-1 foot). Cross-referencing positive eBird reports from the last month with tide tables that evening, I discovered the bird preferred higher tides (+4 to +5 feet). Armed with that trend, we returned to the pond for the flow on Sunday morning. The bird absent again, we birded the bayshore while the tide continued to rise, a surprise Short-eared Owl a great bonus for our efforts. We returned to the pond an hour later, scanned through many recently-arrived scaup, and found the sought Tufted slightly removed from that accompaniment. 

JP's Digi-scoped (my scope, he's not carrying one) Short-eared Owl

JP's Digi-scoped Tufted Duck (Canvasback at front right)

The sandpiper and duck handled, we used Sunday afternoon to find several vocal Ridgway's Rails at the Palo Alto Baylands. JP could have pursued that species at the Salton Sea or outside Yuma, but it was easy to handle while he was in the Bay Area. We went our separate ways at 3pm, but we've stayed in close contact through the last few days. I imagine that trend will continue through the year as I know a few things about navigating the country under my own power.

Me and JP on SF Bay

Riding and interacting with JP was a blast, and I hope other birders lend encouragement, bird-finding advice, and lodging as he extends is one-wheeled adventure. JP has a wonderful appreciation of the natural world, a knowledge extending well-beyond birds, and an engaging personality. He's going to have a really sweet story at the end of this year, so hopefully some of you will find a way to be a part of it!

Below is his rough route for the next few weeks. He's in Hollister now and will be going to Pinnacles before following the 101 corridor south to Paso Robles and onto San Luis Obispo. From there he'll follow the coast all the way into Pasadena. If you live anywhere near the indicated blue trace -- San Lucas, San Ardo, Bradley, Templeton, Atascadero, SLO, Pismo Beach, Santa Maria, Lompoc, Santa Barbara, Ventura, Camarillo, Simi Valley, and Pasadena, etc -- and would be willing to house and feed JP, please email him at Lodging on the CA coast is HELLA expensive, and it would be a huge financial help if the community would step up to keep costs down! 

JP's rough route for the next two weeks or so.
His goal is to be in Pasadena on April 1st (no joke).

That's it for now, cheers!

Tuesday, February 25, 2020

Post #175 - February photo essay

I can't believe I haven't updated the blog for nearly a month, but a mid-month trip to Southern California interrupted my usual every-other week rhythm! I hope everyone weathered the drought, and I'll keep this post short to aid reacquaintance. With January cloud recently - and thankfully - yielding to February sun, I've managed some decent frames these last few weeks. I'll use this post to present four with a bit of commentary accompanying each.

That reminds me - if you're in the Bay Area - I'm presenting for the Bay Area Bird Photographers next Wednesday, March 4 in the Embarcadero Room of the Rinconada Library in Palo Alto from 7:30 - 9:00pm. I'll be showing photos from New Zealand, Colombia, Thailand, and around the US.

Let's start with a departure from my front-lit wheelhouse, a Belted Kingfisher silhouette captured in the Pillar Point Harbor from my inflatable kayak. The rising sun had just overcome the coastal mountains to the east, and an intervening fog bank scattered the horizontal rays to create this luminous backdrop. In the past, I've entirely blacked-out my silhouettes via underexposure - either in-camera or during editing - but I decided to leave a faint suggestion of the bird's white collar in this instance. It's a really small creative decision but lends the subtlest hint of plumage characteristic to the already unmistakable subject. The human eye possesses greater dynamic range than any camera sensor, so we rarely see silhouettes as entirely black anyway.

***Click images for larger, better views***

Belted Kingfisher - Megaceryle alcyon
Canon 600mm f/4 IS II on Canon EOS 1DX Mark II 
1/4000 at f/5, ISO 400

Next is this juvenile Black-crowned Night-Heron which I encountered an hour after the above kingfisher. I'm a sucker for close-cropped and highly-detailed headshots, so I couldn't resist snapping this frame when I floated within twenty feet of this confiding subject. The golden background results from earthen cliffs well-behind the roosting bird, and I knew the greenish lores and orange eye would demand attention against the surrounding brown tones.

Black-crowned Night-Heron (juvenile) - Nycticorax nycticorax
Canon 600mm f/4 IS II + 1.4x TC III on Canon 1DX Mark II 
1/5000 at f/5.6, ISO 800

Some might ask why I shot the above static subject with a lightning-fast 1/5000 shutter. Well, I was primarily set-up to capture flying waterfowl, manual circumstances which facilitated the capture of this Bufflehead shortly after the above encounter. I'd long-wanted a decent flight frame of this skittish species, and this effort represents my best from a dozen individual forays to Pillar Point Harbor over the last two winters. Getting my kayak into position ahead of the inevitable escape is really challenging, but I met with success by driving the birds towards a shoreline and forcing them to flee my craft at a perpendicular angle. Without something to restrict their escape, they fly directly away and make appealing captures impossible. The golden water results from cliff reflections.

Bufflehead (male) - Bucephala albeola
Canon 600mm f/4 IS II + 1.4x TC III on Canon 1DX Mark II 
1/4000 at f/5.6, ISO 640

Last is this little Eared Grebe. I had some time to kill ahead of the last month's Bay Area Bird Photographers meeting, so I swung into the Palo Alto Baylands ahead of that event. I love depicting common and/or drab birds, so I was stoked this individual swam into range and gave me the opportunity to show his winter garb in perfect end-of-day light. This sort of low-angle work is about my favorite sort.

Eared Grebe (winter plumage) - Podiceps nigricollis
Canon 600mm f/4 IS II + 1.4x III TC on Canon EOS 5D Mark IV
1/2500 at f/5.6, ISO 800

OK, that's it for now. I have another crop of photos from my time in Southern California, and I'll be sure to share those in the near future!

Wednesday, January 29, 2020

Post #174 - An epic day of bike-birding in my home San Mateo County!

When Alvaro 'Gull Whisperer' Jaramillo found an adult Slaty-backed Gull - an Asian species which wanders to the lower 48 states in small number each year - in Half Moon Bay on January 14th, he immediately texted me in case I wanted to put my bike into motion to pursue it. I received his alert at 1:15pm, promptly stood from my desk chair, did a bit of stretching and a few unweighed squats, and realized I didn't have the juice to ride for the bird that afternoon. It was a tough concession, but I slated a better-rested chase the following morning.

Slaty-backed Gull range

I left my San Mateo apartment at 7:15am, covered the 15 miles and 1,000 vertical feet over Highway 92, and rolled onto the Venice bluffs at 8:25am where several birders were already assembled. Initial scans of several hundred gulls revealed no Slaty suggestions, but Chris Hayward and Malia DeFelice arrived on bikes and redirected efforts to a lower beach vantage from which they'd observed the bird the previous afternoon. Sifting through a greater number of gulls we couldn't see from the bluff, Chris picked the sought Slaty-backed from the flock. Marginally darker than nearby Western Gulls (none in photo), the streaked head, comparatively smaller beak, and pot-bellied profile helped make the ID.

Slaty-backed Gull - Bay Area bike bird #301 (Digiscope)

The gull handled, I mulled the possibility of continuing south to Pescadero to look for would-be-Bay-Area-bike-birds Red-naped Sapsucker and Prairie Warbler, an ambitious extension which would swell my morning jaunt (30 miles) into a full-day undertaking (68 miles). My legs felt good during my outgoing ascent of Highway 92, and I knew I'd have to survive a return/second climb whether I went directly home or extended south. The decision therefore hung on wind, a quick check of the weather revealing a weak southern flow building through the afternoon. That would be perfect as I'd get an unusual afternoon push as I returned north later in the day. All the variables aligning, I was off to Pescadero.

Perfect riding conditions

Chris and Malia joined me in Pescadero after swapping bikes for a car, and the three of us absorbed Aaron Maizlish as we scoured the roadside thicket the Prairie Warbler had frequented since its discovery ten days earlier. Unable to find that bird and suffering a depressing lack of activity, Chris and I ditched the other two while we explored the creek for the Red-breasted Sapsucker. That bird showed with the minimal effort Chris promised, our Picidae quarry revealing itself after an easy fifteen-minute search.

Red-naped Sapsucker - Bay Area bike bird #302 (Digi-binoc'd)
The red back is a phone artifact.

Activity had increased while Chris and I were dealing the with Sapsucker, and our reunited foursome persevered to achieve distant but diagnostic views of the sought Prairie Warbler (Bay Area bike bird #303). When a closer encounter wasn't afforded after an additional 20 minutes, we ducked into town to try for a continuing Orchard Oriole. Unlike the wary warbler, the obliging oriole materialized for great views just after we arrived.

Orchard Oriole (Digi-binoc'd)

When a final try for better views and photos of the warbler failed, I began the two-and-a-half-hour ride home. The wind didn't aid me as much as I'd hoped, but high clouds kept the sun off me and held temperatures in the mid-50s. My afternoon ascent of Highway 92 was rough, but the day's efforts didn't seem outrageous against some really nice birds!

Map with elevation profile at top right

To summarize

Slaty-backed Gull: Bay Area bike bird #301, San Mateo bike bird #265

Red-naped Sapsucker: Bay Area bike bird #302, San Mateo bike bird #266

Prairie Warbler: Bay Area bike bird #303, San Mateo bike bird #267

Orchard Oriole: San Mateo bike bird #268 (I'd seen one in SF previously)

The kicker? The gull and warbler were new for my CA list, sorry as it is. So yeah, January 14th will go down as an amazing day of bike birding! 

Saturday, January 18, 2020

Post #173 - My Bay Area bike list reaches 300 species!

Happy 2020! Glad you've returned for another year of The Speckled Hatchback, the blog's fifth! I'm sorry for the month since my last post, but I should be back on track after returning from Thailand, a wonderful country and fantastic birding destination which I will feature in future posts. For now, I'll stick to the Bay Area, but only after I mention three quick asides.

1) I have put together a gallery of my favorite photos from 2019 to match those from previous years. This years's collection features shots from CA, NY, AL, New Zealand, Colombia, and Thailand. Here's a preview....

Blue Pitta from Thailand
Canon 600mm f/4 IS II on EOS 1DX Mark II
1/100 at f/5, ISO 3200, tripod

2) I would like to shine attention on John Patten Moss, the entertaining Georgia twenty-something who has recently embarked upon his unicycle Big Year from Washington State. His plan is super ambitious, and I encourage you to have a look his blog, updated weekly. I will post more about his CA route as he approaches The Golden State, and I am sure John would appreciate housing offers from those who can manage it. I'm hoping to intersect him at some point, and I'll be sure to offer a write-up of that anticipated rendezvous when it happens.

Photo from this article

3) If you're mapping out your birding year, be advised there is still space on the Colombia birding extravaganza I'm running for Alvaro's Adventures. It will run June 20 to July 2, and - with two additional days this year - we should exceed the 375 species we found last year.

Colombia has tanagers, antpittas, and hummingbirds galore!

OK, on with the bike-birding show! As I finished 2019 with 299 species on my Bay Area bike list, I was curious to see what yet-unobserved species would surface as 2020 arrived. I missed some potentials while I was in Thailand - notably Scarlet Tanager at the SF Zoo - but Ken Moy's discovery of a usually-more-eastern Rose-breasted Grosbeak at the Botanical Gardens in Golden Gate Park on January 6th lent intrigue just as I returned. Exhaustion and responsibility prevented me from pursuing the bird immediately, but it stuck around until the 11th when I observed it in the same fruiting tree it had frequented for the previous six days. Though unable to obtain a photo during my brief encounter, I was hella stoked to achieve 300 species after pedaling nearly 5,000 bird-motivated miles since moving to the Bay Area in May of 2017. Granted, an amassed list of 300 birds isn't good for much, but it's been a ton of healthy fun exploring the Bay Area as I inched towards that plateau. I'm encouraged to explore more and farther afield, and I'm excited to discover what additional species will surface along the way!

My grosbeak pursuit. I also added Wrentit
 in the Presidio for SF bike bird #191.

This seems the perfect occasion to remind everyone of the achievements of some other notable California bike-birders. Most impressive are Mark Kudrav and Jim Royer who've each observed 300+ bike-based species in California a single year, Jim with 318 in 2010 and Mark with 326 in 2013. Their's was remarkable dedication, and I am in awe of the efforts they put forth during their respective campaigns. They and folks like Josiah Clark, Rob Furrow, and Chris O'Connell are California bike-birding pioneers, and we are fortunate their examples have inspired so many, me included. I am particularly excited by the number of Bay Area birders who have more recently taken up the bicycle. I regularly intersect burgeoning bike-birder Joshua Stacey, and Chris Hayward and Malia DeFelice increasingly patrol the Half Moon Bay beachfront from rolling perches. Most exciting is seeing the younger generation of Oscar Moss and Jonah Benningfield wheeling around!

Jonah and Oscar exploring SF

All of this is to say that California - and specifically the Bay Area - feels the nation's bike-birding capital at this moment. Climate, topography, bicycle infrastructure, and species diversity certainly encourage the pursuit, but it's ultimately up to adventurous individuals to seize on those facilitating circumstances. Bike-birders are still a small group, but I hope our ranks will continue to swell through 2020. It'll be great when John Patten Moss wheels through our state, so hopefully we can give him the welcome he deserves when he arrives! I'll try to keep everyone posted as that day approaches. Cheers!

Wednesday, December 18, 2019

Post #172 - 2019 Santa Clara Evening Grosbeak and 2019 bike-birding summary

I'm off for 16 days in Thailand tomorrow, but here's a quick and final post to close out 2019. I didn't do much bike-birding in the first third of the year, but a renewed commitment through the remainder yielded lots of birds and adventures, most of which I've chronicled in previous entries. I'd hoped to run my cumulative Bay Area Bike List to 300 species this year, but I fell just one short, the long-staying Evening Grosbeaks at Stanford checking-in at #299 on, December 12th. This winter is a mini-invasion for Evening Grosbeak, the usually more-alpine/coniferous finch making sporadic appearances around the Bay Area through November and December after after a several-year absence.

Evening Grosbeak Range (L) and Bay Area sightings 2015-2019 (R)
More info on Evening Grosbeak here.

Stanford Evening Grosbeak

Evening Grosbeak pursuit

With all the twists and turns, I churned out 2,086 miles of bike-birding in 2019, a total exceeding the 2,002 I logged last year. I spent comparatively less time in my home San Mateo County and correspondingly more exploring neighboring counties. Most notable were my first three trips over the Golden Gate to Marin (one in successful pursuit of Yellow-crowned Night-Heron and two failed in pursuit of Tricolored Heron) and a long, roundabout foray into Alameda to tick Bar-tailed Godwit. Incidentally, I chased only one bird by car in 2019 - Yellow-browed Warbler in the Sierras - and missed. At least I reconnected with loads of old friends in the bird's absence..... 

Bird added to my Bay Area Bike List in 2019

As I am now fully entrenched in the county listing game, here's a glance of where I stand to begin 2020. The 25-mile radius doesn't mean much - because riding distances aren't linear - but does give some sense of scale. Going north, it's 16 riding miles from home to the southern end of San Francisco and 28 to reach Marin via the Golden Gate. Going South/east, it's 16 riding miles to reach Santa Clara at the Palo Alto Baylands (and 30 to Alviso) and ~22 to across the Dumbarton Bridge to reach Alameda at Coyote Hills. 

Looking forward to 2020, I have several more ambitious overnight rides I'd like to execute.

1) A 3-day, 2-night loop going north into Marin (Feb 6), over the newly-opened bike lane on the Richmond-San Rafael Bridge into Contra Costa County (Feb 7), and continuing to Arrowhead Marsh (Feb 8) for Nelson's Sparrow on the 11am high tide. That will leave me the afternoon of the 8th to continue south over the Dumbarton and back up the western shore of SF Bay to San Mateo. With ticks accumulated across Marin, Contra Costa (where everything will be new), and Alameda Counties, I should approach 1,000 county total.

2) A 4-day, 3-night out-and-back featuring Mines Road (Santa Clara) and Del Puerto Canyon Road (Stanislaus) for inland species including Swainson's Hawk, Greater Roadrunner, Costa's Hummingbird, Canyon Wren, Bell's Sparrow, Phainopepla, Lawrence's Goldfinch, Blue Grosbeak, and perhaps Common Poorwill. I'd go ~50 miles to Livermore on Day 1 and ~60 to Patterson on Day 2. That would let me do Mines Road in the AM and Del Puerto in the PM. I'd retrace those track on Day 3 and 4 to clean up whatever species I missed. I'd probably do this in early-May once all the birds are on territory. 

3) A two-day run down the San Mateo Coast to Año Nuevo to get Black Swift. I could also nibble on the northwestern edge of Santa Cruz County before returning to the Pigeon Point Hostel for the night. 

4) I'd also love to do a bigger loop around the North Bay to get into Sonoma, Napa, Solano, Sacramento, and San Joaquin Counties, but I can only dedicate so many days to this nonsense, right?

OK, enough. I will have a full photo recap coming, but that will have to wait until I return from Thailand. I thank readers for slogging through another year of what is mostly an on-line diary; I hope it provides at least a short refuge from the daily noise we are forced to endure at this least-inspired moment in American history. 

Monday, December 9, 2019

Post #171 - Bay Area bike birding - Tricolored Heron and Plumbeous Vireo

With my Bay Area bike list sitting 3 species shy of 300, I was stoked to learn about William Legge's discovery of a Tricolored Heron at Rodeo Lagoon in Marin County on November 10. There are only 3-4 eBird records from Northern California, the most recent from Point Reyes in 1996, so the regionally-rare bird would be a fantastic addition to my self-powered collection. There was, however, a major barrier to any pursuit.

(L) Tricolored Heron range adapted from this Cornell website
(R) California sightings adapted from eBird 

Knowing I'd be at the Rio Grande Valley Birding Festival from November 5-10 and visiting my family in Philadelphia from November 14-19, I'd surrendered my painfully-neglected bicycle for major repairs before I left for Texas (on the 4th) on the understanding the overhaul would be complete by the time I returned from Philly (on the 19th). Though conceding the three usable days between the trips (11th, 12th, 13th) seemed a pittance against the guarantee of losing the bike for two solid weeks at a later time, the vagrant heron gave me the big fat middle finger by staying at Rodeo through those days. Adding insult to injury was the continued presence of Kevin Gin's coincidently-discovered Plumbeous Vireo in Santa Clara County. Like the Tricolored, the would-be-new-Bay-Area-bike-Plumbeous would need to stay until the 20th for me to have a crack at it. Needless to say, I was not optimistic about my chances to add either bird as I boarded my flight to Philly on the 14th.

(L) Tricolored Heron range adapted from this Cornell website
(R) California sightings adapted from eBird 

I monitored online reports of both vagrants from Philadelphia. Sightings of the Plumbeous ceased after the 17th, but those of the Tricolored continued through my travel day on the 19th, circumstances suggesting I prioritize that bird at my first chase opportunity on the 20th. Because I am a total dork, I also kept tabs on the San Francisco Red-footed Booby (November 8th, Peter Winch). That bird was also present through the 19th, so I swung through the city to tick it before continuing over the Golden Gate and into Marin for the heron. Red-footed Booby was not a Bay Area bike bird because I saw the Half Moon Bay individual in November 2017, but it was an SF County bike bird (#188).

Great day for a ride

Digiscoped Red-Footed Booby on Coast Guard Pier, SF

Once at over the bridge, I descended to Rodeo Lagoon where the heron materialized right on schedule!

Sadly, we all know people who've tried to pass photos of one individual bird as another, but I'm not gonna play you like that. This photo was taken on November 9th in Texas, my time at Rodeo on the 20th yielding no whiff of the Tricolored despite its presence for the previous ten days. It was a painful miss, but I was due for disappointment after a very lucky fall. At least I found a use for this otherwise random photo. The low angle in the above shot should be a dead giveaway its not from the Bay Area; its virtually impossible to get into the water/habitat around here to take good pictures of waders. 

BUT WAIT! THERE'S MORE! Though the Tricolored wasn't reported on the 20th, 21st, or 22nd, two independent reports on the 23rd prompted a second attempt on the 24th. And you know what? I missed it on that day too. I'd like to say I wouldn't bother chasing this bird again if it resurfaced, but I know I'd have a hard time ignoring it. I don't rarely chronicle misses - fortunately there haven't been that many - but I thought this instance absurd enough to mention. All this bike-birding nonsense keeps me in shape if nothing else. 

(L) Route on November 20th
(R) Route on November 24th

OK, but what about the Plumbeous? Well, that bird kinda fell of my radar in the wake of the time and energy I'd invested into the missed Tricolored, but a renewed spate of sightings between November 28 and December 4th prompted a much-delayed attempt at the long-staying bird on December 5th. I intersected the singing bird after an hour search, it offering great views foraged at eye-level in the parking lot adjacent to the area it had frequented for the previous 3 weeks.

Plumbeous Vireo - Bay Area bike bird #298

And because I'm now full-blown county lister - albeit with very limited self-powered reach - I detoured into the foothills and Pearson-Arastradero on my return to add a few more Santa Clara species, Ring-necked Duck, Hooded Merganser, and Purple Finch among them. Santa Clara bike list now at 184.

That's it for now. I'm hoping to crank out one more post before I leave for Thailand on the 18th, so please stay tuned for that. Enjoy the start of CBC season in the meantime!