Date   

Oct. CCCO Bay Trail closures

judisierra
 

Pt. Isabel to Meeker slough. October 4-7, 15, and 27
https://www.ebparks.org/news/displaynews.htm?NewsID=261&;TargetID=17


Wildcat Canyon, Wednesday 9/22/21

Alan Krakauer
 

I walked the Bonita Trail up and back and also a bit passed the intersection of the Belgum trail on the Wildcat Creek Trail from the Alvarado Staging Area parking lot off of Park Ave in Richmond. It was fairly birdy with a mix of a few early winter birds plus some fall migrants. I had FOS Yellow-rumped Warblers, along with a couple of Northern Flickers and bigger numbers of White-crowned Sparrows. There were also multiple Hermit, Yellow and Townsend's warblers. I also had a couple of Blue-grey Gnatcatchers-- these can breed here but I hadn't seen them much this summer so I'm not sure if these were residents or migrants. 


Good Birding,
Alan Krakauer, Richmond


FOS Poorwill

judisierra
 

There was a common poorwill early this morning on the Upper Strawberry Canyon fire trail, Berkeley. The earliest fall date I have is 9-29-15.

Judi Sierra
Oakland


Re: Green-tailed Towhee in Tilden Nature Area

Bob Brandriff
 

The tailless Green-tailed Towhee continued in Tilden this morning. It
was at the north end of Lower Packrat Trail fairly close to the
intersection with Upper Packrat trail.
37.911639, -122.269001

Good birding.

Bob Brandriff
Berkeley

On Mon, Sep 20, 2021 at 11:50 AM Susan Greef <susan.greef@gmail.com> wrote:

Good morning,

This morning while birding the Upper Packrat trail with Marilyn Kinch and Chris Carmichael, we saw a Green-tailed Towhee scratching along the side of the path. This was between the Dirca (Leatherwood) shrub and the bridge.

Diagnostic rufous crown, plain gray breast and yellowish-green back. Before sighting it, we heard the 'mew' call. Interestingly, it was lacking its tail.

Susan Greef, Oakland



Re: Distinguishing Townsend's/Hermit hybrids?

David Yeamans
 

Alan Bade, thanks for the checklist and its photos although I cannot contribute to the discussion about hybrids. I appreciate seeing birds from one of my favorite places. I didn't know about Red Seep Spring but I'll visit it when I go over Mingus Mountain on my way this fall to hunt snow geese in Saskatchewan. I'm still watching my Livermore condo birdbath for the bi-yearly visit from a hermit warbler.
*************************
Dave Yeamans

If you see bad, do good.


Distinguishing Townsend's/Hermit hybrids?

Alan Bade
 

Does anyone have advice on recognizing Townsend's/Hermit hybrids? As we see more migrants returning or passing through our area, they could be around, but I guess they may be rare. Maybe they are becoming less rare with climate change?

Here's my thoughts so far. But I'm interested in what advice more experienced birders may have.

Issues that could lead one astray...

1.) Worn Townsend's adults may have less distinct markings. Perhaps this is true for worn females more so than mature males.
2.) Immature Townsend's may have plumage that is incomplete, leading one to perceive it as a hybrid.

We just returned from birding in southern Nevada and central Arizona. I'm pretty sure we had a hybrid in two locations. Here's a list with photos of a candidate; https://ebird.org/checklist/S94650923 . I took the lack of streaking on the chest as perhaps leading to it being a hybrid. (let me know if I'm wrong). Also, it had yellow all around the eyes and just looked different than immature Townsend's.

According to a google search for literature, it seems like the primary hybridization areas are in two areas of Oregon and Washington, but that may also be changing with climate change (?)

Thanks in advance,
Alan Bade
Pleasant Hill


Re: Dusky Flycatcher

Ethan Monk
 

Thanks Jack for pointing out my error! I was not, in fact, right at the very top of Nicholl Knob but rather a bit South of the hill’s highest point. Hopefully everyone that wanted to figure it out did. 

Ethan

On Sep 20, 2021, at 5:26 PM, hoggsville <jellsworthhayden@...> wrote:

My other message I sent didn't go through right away, but I thought it worth mentioning that the area where the bird was active was not Nicholl Knob. The coordinates are correct though.

Jack Hayden
Albany




Re: Dusky Flycatcher

hoggsville
 

My other message I sent didn't go through right away, but I thought it worth mentioning that the area where the bird was active was not Nicholl Knob. The coordinates are correct though.

Jack Hayden
Albany


Wilson's and Townsend's Warblers North Oakland

Kate Hoffman
 

Saturday and Sunday I spotted some warblers at close range in birdbaths: male and female Wilson's Warblers and a female Townsend's Warbler. Both species are FOS in my yard (near Morcom Rose Garden) and the Wilson's are first ever in my yard. Yay! Migration is on!

Kate Hoffman
North Oakland


Dusky Flycatcher

Ethan Monk
 

Hi All,

I’m standing at the top of Nicholl Knob currently where there is a Dusky Flycatcher favoring one pine approx. (37.9157899, -122.3797030). Right at the very top. It is vocal. Best of luck.

Ethan


Green-tailed Towhee in Tilden Nature Area

Susan Greef
 

Good morning,

This morning while birding the Upper Packrat trail with Marilyn Kinch and Chris Carmichael, we saw a Green-tailed Towhee scratching along the side of the path.  This was between the Dirca (Leatherwood) shrub and the bridge.  

Diagnostic rufous crown, plain gray breast and yellowish-green back.  Before sighting it, we heard the 'mew' call.  Interestingly, it was lacking its tail.   

Susan Greef, Oakland


Re: Broad-winged Hawk over Berkeley Hills

Alan Howe
 

While making 1 last try for the Canada warbler (though I figured it was probably long gone) @ lower Wildcat Canyon on Wednesday (09/15), I had a similar spotting of a light morph raptor (possibly 2) that wasn't close enough for ID. Every time I hiked a bit closer, it would move away. I doubt it was conscious on its part. ;-)

Alan Howe
North Oakland

On Sun, Sep 19, 2021 at 1:33 PM Michael Park <dpbot@...> wrote:
Post-frontal conditions and clearing skies seemed favorable for raptor movements. At 1130, a light-morph juvenile Broad-winged Hawk was seen, in a glide, high over the crest of the north Berkeley Hills. It was southbound.

There might be others. A second candidate was visible in the distance over Inspiration Point in WIldcat Canyon. It was a small light-morph hawk. There was a Red-tailed Hawk soaring in the same binocular view for size perspective. The individual was too distant to see finer markings on the tail and wings. Not Rough-legged and too small for Red-tailed or Ferruginous.

Getting the word out, so that others can look up.

Highly cropped image embedded in eBird checklist here:

https://ebird.org/checklist/S94896116

Michael Park
Berkeley




Broad-winged Hawk over Berkeley Hills

Michael Park
 

Post-frontal conditions and clearing skies seemed favorable for raptor movements. At 1130, a light-morph juvenile Broad-winged Hawk was seen, in a glide, high over the crest of the north Berkeley Hills. It was southbound.

There might be others. A second candidate was visible in the distance over Inspiration Point in WIldcat Canyon. It was a small light-morph hawk. There was a Red-tailed Hawk soaring in the same binocular view for size perspective. The individual was too distant to see finer markings on the tail and wings. Not Rough-legged and too small for Red-tailed or Ferruginous.

Getting the word out, so that others can look up.

Highly cropped image embedded in eBird checklist here:

https://ebird.org/checklist/S94896116

Michael Park
Berkeley


Lerp-infested eucalyptus in the east bay?

M
 

Anyone aware of large groves of eucalyptus infested with lerp psyllid insects in the east bay that are attracting large numbers of birds right now? These are known bird magnets in other areas of the state. A quick search of the East Bay Birds archive didn't return any results regarding lerp-infested eucs in prior years as a potential guide for where to look.

This came to mind while browsing eBird reports of Yellow Warbler in the area and noting good numbers at Ellis Lake Park in Concord by Albert Linkowski and others. Often 10+ are reported per outing during September, which seems high given the relatively small size of the park. Photos on eBird show yellow and other warblers among lerp-infested eucs at the park, so I assume this is part of the story, though there are also cottonwoods at the park which are probably part of the attraction too. I've explored other euc groves in central Contra Costa but have noticed very few lerps, so I'm curious if others are aware of more lerpy groves.

Thanks,
Michael Strom
Concord


Re: FOS White Crown's

judisierra
 

I didn't notice any lack of Kinglets last winter. So it's probably the first. They forage in the lower branches of trees and shrubs according to Cornell and my observations. Looking at ebird histogram for frequency it looks like a small difference between 2019 and 2020.
https://ebird.org/barchart?byr=2019&eyr=2020&bmo=1&emo=12&r=US-CA-013&spp=ruckin&separateYears=true

Judi Sierra


On Saturday, September 18, 2021, 11:54:06 AM PDT, W Hudson <wllm2@...> wrote:


Same delight this morning in northeast Orinda.  Yesterday a Black-throated Gray Warbler passing through. 

Hoping for return of Ruby-crowned Kinglets; last year there were none after hearing the "typewriter" in every live oak during the winter for as long as I have paid attention.  Maybe because my neighborhood extensively removed vegetation up to 10' high to lessen wildfire risk last summer and fall, and maybe due to last year's fires in the Sierras (their breeding grounds?) and smoke--anyone else notice a similar absence?

William Hudson

On 9/18/2021 10:39 AM, Jackie Bobrosky wrote:
Thrilled to see a small group of White Crowned Sparrows in my backyard this morning.  Very busy corner in my world with Downy, Nuttall's, Acorn WP, White breasted Nuthatch, Bushtits........but where are those warblers?  I'm waiting....

Happy Birding from Martinez, Ca
Jackie Bobrosky





      




Re: FOS White Crown's

W Hudson
 

Same delight this morning in northeast Orinda.  Yesterday a Black-throated Gray Warbler passing through. 

Hoping for return of Ruby-crowned Kinglets; last year there were none after hearing the "typewriter" in every live oak during the winter for as long as I have paid attention.  Maybe because my neighborhood extensively removed vegetation up to 10' high to lessen wildfire risk last summer and fall, and maybe due to last year's fires in the Sierras (their breeding grounds?) and smoke--anyone else notice a similar absence?

William Hudson

On 9/18/2021 10:39 AM, Jackie Bobrosky wrote:
Thrilled to see a small group of White Crowned Sparrows in my backyard this morning.  Very busy corner in my world with Downy, Nuttall's, Acorn WP, White breasted Nuthatch, Bushtits........but where are those warblers?  I'm waiting....

Happy Birding from Martinez, Ca
Jackie Bobrosky








Saturday Sept 18 in Heather Farm Park

rosita94598
 

It finally happened, David Kent and finally saw a couple of White-crowned Sparrows.  The were with at least many Lesser Goldfinches and House Finches in the community garden.  Also seen today were Yellow Warblers, White-breasted Nuthatches, four of the common waders, Kingfishers and two young Wood Ducks.  Dave and I do not always see the same things, as we walk different directions around the large, mostly natural pond. 

His checklist is here:  https://ebird.org/checklist/S94822856

Hugh B. Harvey
Walnut Creek


FOS White Crown's

Jackie Bobrosky
 

Thrilled to see a small group of White Crowned Sparrows in my backyard this morning.  Very busy corner in my world with Downy, Nuttall's, Acorn WP, White breasted Nuthatch, Bushtits........but where are those warblers?  I'm waiting....

Happy Birding from Martinez, Ca
Jackie Bobrosky





Apologies to all -- TEWA photo is Jack Haydens from Creekside Park

Sam Zuckerman
 

I owe a big apology to all, especially Jack Hayden. That photo of TEWA I thought was from Anderson Park was actually Jack Hayden's photo from Creekside Park. My bird at Anderson was a WAVI. I've corrected the checklist.
 
Sam Zuckerman
samzuckerman@...
510-375-3861


Misidentified Tennessee Warbler in Booker Anderson Park

Sam Zuckerman
 

 
On Sept. 11, I was birding Booker T. Anderson Park in Richmond early in the morning, when I thought I found a Tennessee Warbler in the willows along Baxter Creek. I took a photo, then lost the bird. I thought I found it again in the same location, took more photos, and became convinced that my bird was in fact a Warbling Vireo -- and so reported it on eBird. Now, the eBird reviewer suggests I have photos of two different birds, a TEWA and a WAVI. I'd be grateful for people to look at the photo of the birds now identified as TEWA and WAVI and see if they agree. Here's the checklist: https://ebird.org/checklist/S94508873. 
Birding never ceases to amaze! Thanks to all. Sam 

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