Birds in Wildcat Canyon: April Edition

Spring has sprung! Birds are singing, flowers are blooming, the poison oak is nice and juicy. Pop a Claratin and get out there! Lots of birds to feature in this update.

 

**As always in our new normal, please check with local agencies regarding safety alerts and closures. **

 

Lazuli Bunting, Wildcat Canyon

NEW ARRIVALS: Who’s new to the neighborhood? As the vegetation on the hillsides matures, we’ll get some fresh birds in the open areas before the month is out. There should already be lots of red-winged blackbirds making homes of the taller weed patches, but look and listen for a couple of other species. First is a small finch-like bird called the Lazuli Bunting singing from the edge of fields or the middle of mustard thickets. Male Lazuli Bunting have coloration reminiscent of a bluebird with the saturation slider cranked up to 11, electric blue head and back with a rusty swatch on the sides and breast. They repeat their cheerful song frequently – it bouncing quickly along in a series of notes that can be repeated in pairs. These are definitely one of my favorites here in the canyon!

 

Grasshopper Sparrow, Wildcat Canyon

The other grassland bird I’ll highlight here, the Grasshopper Sparrow, often falls into the ‘seen but not heard’ category. If you are hiking in the open areas of the park, for example above the Belgum grove or along the lower reaches of the Mezue Trail, listen carefully for a long, even, insect-like buzzy trill emanating from the slopes. The sparrows themselves tend to be hard to localize and spot. My best advice is to check distant shrubs for little brown birds on top. The pretty patterning won’t be visible unless you get a close look.

 

Black-headed Grosbeaks, female (l) and male (r). At feeder in Richmond, CA

We also welcome back a colorful bird that might be familiar to those of you with backyard bird feeders, the Black-headed Grosbeak. These stout-billed relatives of tanagers and buntings are striking to look at, with bold blocks of black, white, orange and yellow in males and broad stripes on the head for the females. Their song resembles a loud robin song, swinging up and down in pitch through variable phrases, but with notes that are more staccato and more impatient rhythm. Listen for them in the tree tops in the canyon and your neighborhood.

 

Ash-throated Flycatcher, Wildcat Canyon

With Spring comes more insects, and with those come more insectivorous birds. Flycatchers are one such type, they comprise a sprawling collection of species that mostly share a hunting style – making short flights from perches to catch insects on the wing. We have resident species (Black Phoebe) and wintering species (Say’s Phoebe) but most of the flycatchers we meet here are migratory birds who show up to have their families here. The Ash-throated Flycatcher are Personality Plus, loudly announcing their presence with “BrrrReeeeep” calls and sporting a punk hairdo. Ash-throated Flycatchers nest in boxes or tree cavities much like bluebirds and you often find them along fences, scrub, and forest edges.

Pacific Slope Flycatcher, Wildcat Canyon

At the tinier end of the spectrum is the Pacific Slope Flycatcher. Pac-slopes are not much bigger than a warbler. You may see these in the forest, perched on a branch bobbing their tails and broadcasting their abrupt “Ptik” call. Look for their teardrop-shaped eye ring that’s slightly wider towards the back of their head than towards their beak. Pacific Slope Flycatchers are members of the genus Empidonax which are notoriously hard to identify even for seasoned birders. They are the only one we commonly see here in this close to the Bay, but several other species are possible especially during migration. Telling them apart requires a good look at their shape, color, behavior, and ideally, a description of their call.

 

WINTER BIRDS ON THE MOVE: Time to say goodbye to more of our friends. Most of our wintering sparrows will head out this month, led by our Sooty Fox Sparrows, followed by White-crowned and Golden Crowned Sparrows. The Golden-crowneds all breed in western Canada and Alaska. The White-crowneds make a much more complicated patchwork of resident and migratory populations with California migrants traveling to the Sierras or up the coast and even all the way up to northern Alaska. We are just on the edge of the range for some of the resident populations (apparently there are some in the scrubby areas of Hillside Park in El Cerrito, along with some spots closer to the bay and coast), so it’s not completely out of the ordinary to find one here in the spring or summer but for most of us in this part of the bay we won’t see them until the migrants return it the fall. For now, just enjoy their last days here as they sport their fresh breeding plumage and zip around full of vim and vigor.

 

Other woodland birds heading out soon include the tiny Ruby-crowned Kinglet and the Hermit Thrush. As the Hermit Thrushes leave, their cousin the Swainson’s Thrush will arrive from the south, but that is a story for next month…

 

OUTSIDE THE PARK: There is no bad place to bird right now! As I mentioned in the March update, this is the perfect time of year to check out parks and trails in the interior East Bay.

 

Need an excuse to get out? April 10th is the San Francisco Bay Bird Observatory’s Photo Big Day. This is a fundraiser for a bird research and conservation organization on the Peninsula. The special theme for this event is “color”, either pictures of colorful birds or birds with a colorful background. For more information visit https://www.flipcause.com/secure/cause_pdetails/MTEwNjMx

 

Stuck at home? Golden Gate Audubon Society, one our local chapters, has some classes and virtual field trips. Many of these are also important fundraisers as part of the GGAS Bird-a-thon. Visit https://goldengateaudubon.org.

 

More Wildcat Canyon images available at alankrakauerphotography.com

(This essay was originally posted on NextDoor)

Wildcat Canyon Birding: Late Summer

Townsend's Warbler

This is the second essay I wrote on birding in my local open space. Originally posted on Next-door as a way to reach out to neighbors and get them excited about enjoying the biodiversity in our local park.

 

 

 

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Birds in Wildcat Canyon: Late Summer Edition. After more than a week of extreme heat, smoke, and park closure, my binoculars and I finally made it out to Wildcat Canyon yesterday. It was pretty quiet, but I ended up with around 37 species including several fall migrants. I heard a Western Tanager, so they are still coming through. I also had four species of warblers, a sure sign that fall is approaching! Wilson’s Warblers breed in the park so the one I saw may have been a local bird from this summer, but Yellow Warbler, Townsend’s Warbler, and Black-throated Gray Warblers are all newly arrived from their breeding grounds. [photo is a Townsend's Warbler, probably a young female]

FALL WARBLERS: Up for a challenge? Fall warblers can be tricky to find and to identify. In the spring, male warblers are considerate enough to SING LOUDLY AND DISTINCTLY, OVER AND OVER AGAIN. We’re not so lucky in the fall, and today I was straining my ears to pick out quick, infrequent call notes. Also, the adult birds will now be mixed with the young of the year, so be prepared for some drabber plumages along with the more vibrant yellows that the spring males of some species show off. Sometimes warblers will join our noisier resident birds in foraging flock, so if you come across some chickadees or bushtits, take a moment to pick out bird movement in the trees and maybe you’ll spot some other species too. The warblers and other migrants can show up anywhere, and different species may prefer different vegetation, but in general good places start your search include patches of willows in Wildcat Canyon and the mixed woodland along Wildcat Creek in Alvarado Park.

ACORN TIME: Fall in our oak woodlands means the start of a food bounty for some of our local wildlife. Watch for Western Scrub-jays flying around with their mouth full. Like many corvids (crow relatives), these jays will obsessively collect food then stash it around the landscape. And of course there are the aptly-named Acorn Woodpeckers. Family groups of these noisy hoarders can include multiple breeding males, multiple breeding females, and stay-at-home kids from previous years! The whole family works together to stash large numbers of acorns in tree sections called granaries. Other wildlife that incorporate acorns in their fall diet includes Wild Turkeys, California Quail, Band-tailed Pigeons (our fantastic large native pigeon), Woodrats, and Fox Squirrels. The Huchiun Ohlone people who lived in what is now Wildcat Canyon also relied on acorns as part of their diet.

LEAVING SOON: if not already gone, many of our breeding birds that head further south for the winter. These include the Wilson’s Warblers and Orange-crowned Warblers, along with Black-headed Grosbeaks.

OUTSIDE THE PARK: Looking for other places to see migrating songbirds? Wildcat Canyon is pretty dry, and in our parched summer landscape birds may be a little easier to find around water. Keep your bird bath filled, you could get surprise visitors to your backyard! One spot I’ve visited in late summer (although not yet this year) is Creekside Park on the Albany/El Cerrito border, on the north side of Albany Hill. The solitary wooded hill rising out of the urban landscape may be an attractor for birds coming through. Once they’re drawn in, they pause and forage in the trees along the creek. I’ve never had a sketchy experience there but as always be aware of your surroundings.

One of the most exciting bird migrations we get in the Bay Area is the fall migration of raptors. Not all raptors migrate, but some species and populations do, and they often take routes with advantageous topography and thermals to make their way south. The best place in the Bay Area is probably Hawk Hill in the Marin Headlands just north of the Golden Gate Bridge. Prime days will see dozens or hundreds of hawks of several species zoom past, some practically at eye level. Osprey, Sharp-shinned and Cooper’s Hawks should start increasing soon, and the overall peak is usually late September. Go on a sunny day for your best chance. Visit https://www.parksconservancy.org/programs/golden-gate-raptor-observatory for more details.

I’ve always thought we should get more migratory raptors along San Pablo Ridge than we do. Could be I’ve just not caught the right day yet!

Wildcat Canyon Birding: Early August

Hermit Warbler

I’ve always enjoyed sharing my love of birds and nature, whether with students in the classroom, field techs on a research trip, or strangers I might meet on the trail. In fact, this was a big reason why I started my photography business. Since I haven’t been able to do this much in person this year, I’ve started to write up some short nuggets to share online. These have been focused on Wildcat Canyon (my local open space), and I’ve been posting versions of these on our Nextdoor network so I can reach neighbors who have ready access to the park. So far the feedback has been really positive and I’ve gotten a lot of messages of thanks along with questions and observations shared.

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SUMMER BIRDS IN WILDCAT CANYON PARK. With the hills covered in beaten down brown grass, August may not seem like an interesting time to look for birds, but it is! What’s going on in the park these days? I’ve put together a few highlights from my own experience walking there, with some help from a citizen science platform called eBird. For example, eBird can summarize the seasonal occurrence of all the birds that have been reported in Wildcat Canyon.

https://ebird.org/barchart?r=L388820&yr=all&m=

What have you been seeing? YOUNGSTERS: Most birds have already finished their nesting season, but family life for many species extends once the nest is empty. Look for groups of Dark-eyed Juncos and Spotted Towhees with the fledglings still showing streaky plumage. Young crows and ravens sound like spoiled brats as they give their higher nasal begging calls. Keep your eye on the ridges for young red-tailed hawks taking advantage of the updraft to look for rodents on the slopes below. In past years I’ve seen more than a dozen from one spot! And our fledgling Great-horned Owls should still be around somewhere!

FALL MIGRATION BEGINS: It’s still a bit early for many of the migrating songbirds, but it’s never too soon to start looking for birds making their way to or through the Bay Area in the fall. I’ve seen a few notices of Western Tanagers already making their way south, including one along McBryde Avenue near the park. These are a great bird to find since they do only pause here in the East Bay Hills during migration. Plus they are gorgeous! Try to get a good look at their beaks to make sure you can separate them from the similarly-sized Black-headed Grosbeak or Hooded/Bullock’s Orioles. For a tougher “migration challenge” in the park, look for another bird that only visits briefly in the spring and fall, the Hermit Warbler. I’ve only seen these little yellow-faced beauties a few times.

WHO’S LEAVING. Some of our summer breeders have left or will leave by the end of August. For example, Ash-throated Flycatchers and our cavity-nesting Tree and Violet-green Swallows, common sights throughout the spring, will be much harder to find by Labor Day. Also, get your last looks at Lazuil Bunting if you can find some, although they are more easily found in the spring when their cheerful song rings out from the mustard and willows.

OUTSIDE THE PARK: Actually, the best migrations going on right now are not in the hills and woodlands. Instead, check along the bay, coast, or other spots where there’s lots of mud or water. I’m talking about Shorebirds! Many species of sandpipers, plovers, and their relatives breed well to the north. Many species have already started their southward migration. Often the adults leave the breeding grounds first, and the fledglings will leave a little later. Shorebirds are one of the trickiest groups of birds to master, and you’ll benefit from good optics like spotting scopes to see more of the fine detail. Even if sorting through field guides to identify shorebirds isn’t (yet) your cup of tea, this is still a great time to appreciate shorebirds in the Bay Area. Not only are some of the adults still in their breeding plumage, but the young may be sporting crisp colorful new feathers as well.

Good birding!

On Covid and Research

Wilson's Warbler

It’s apparently been ages since I’ve updated my site here! I’ll share an essay I wrote this spring that was published by the Golden Gate Audubon Society, a large local chapter of the national conservation organization. Given the start of the Covid closures, GGAS put out a call to members for essays on their experience with birds and birding during the shelter-in-place regulations that we still, more or less, are facing here in Northern California. Many people wrote about the opportunities of focusing on their local birds, or the importance of connecting with nature during challenging times. My thoughts turned to the hurdles my colleagues in the sciences would be facing.

Essay is here, from April 2020: When Birds Are More Than A Hobby.