Date   
White tailed kites nesting in Hercules

Susana dT
 

I have so much fun observing theses guys. I think this is interesting behavior. These kites select branches from their favorite perch, some are pretty big and flexible since the tree is not dead. They put their weight to work in their favor but still it is not enough to get what they want. They succeeded in other occasions. Video here:
https://www.flickr.com/photos/166553264@N04/46617430825/in/dateposted-public/

Castle Rock/Pine Canyon, this morning, 4/4/19

tracy_farrington
 

Despite the light drizzle, Castle Rock Park (Walnut Creek), and a little ways further up Pine Canyon, beyond the park,
conditions were quite birdy. On the south end of the ball field I found a group of 12 LARK SPARROWS. A bit
further on, I heard several WARBLING VIREOS, and had visuals on a couple of ORANGE-CROWNED WARBLERS.
Between the first cattle gate and the grassy berm opposite the Castle Rocks (where the Peregrines nest), I had
good visuals on 4 more Warbling Vireos, half dozen Orange-crowned Warblers, 6 WILSON'S WARBLERS, a brightly singing BROWN CREEPER,
2 HOUSE WRENS, an active WHITE-BREASTED NUTHATCH nest (old knot hole in a lower branch of the first oak
with the bench beneath it), and plenty of WHITE-THROATED SWIFTS and VIOLET-GREEN SWALLOWS, overhead.

Upon my return, about 200ft. before re-entering the park/recreation area, bird activity in the stream-side thicket (east side of the trail)
was notable. While literally standing still for about 15 minutes, I had another Wilson's, 2 Warbling Vireos, 2 more Orange-crowns, a WESTERN BLUEBIRD
pair, a BLACK-THROATED GRAY WARBLER, 1 NASHVILLE WARBLER, a LINCOLN'S SPARROW, a very bright YELLOW-RUMPED (Myrtle),
and a CALIFORNIA THRASHER.

There were good numbers of both WHITE-CROWNED and GOLDEN-CROWNED SPARROWS, flitting through the growth.
And who should make an appearance? Popping into view, jumping from ground to a small shrub, was the HARRIS'S SPARROW.
I believe this is the furthest south from the grassy ball field area that it's been seen.

It's a birdsong lab up there, folks.

Good birding,
Tracy Farrington
Walnut Creek

San Leandro Marina

Bob Richmond
 

Today at the south part of the San Leandro Marina a PACIFIC GOLDEN-PLOVER was on the large island offshore. Also a WANDERING TATTLER was heard.
Back near Monarch Bay Parkway a CASSIN'S VIREO was seen and not heard.
Bob Richmond

Friday in Heather Farm Park, Walnut Creek and more

rosita94598
 

First of all, it had nothing to do with meeting me, but Derek Heins found the continuing Tropical KIngbird today.  His eBird list is here:  https://ebird.org/view/checklist/S54583509 

We have been dodging the morning rains this week, but a lot of birds are out there to be seen.  The Ruby-crowned Kinglets are singing, Canada Geese have their first goslings in the concrete creek channel to the west of the park.  Rough-winged Swallows are flying over the big pond, and a few Barn and sometimes Violet-green Swallows, too.
The Ring-necked Ducks and Buffleheads which spent the winter with us have left, but today we had two male Ring-necked Ducks and one female Bufflehead.  Maybe they are heading north from even farther south than Walnut Creek.  Interestingly, what appears to be a young male Common Goldeneye has been staying around for quite a while, now.  The Double-crested Cormorants are also sticking around, but the waders have disappeared; no egrets, Night-Herons and no Green Heron.  The Green Herons may be around, though, as they have nested here annually for many years.
Yellow-rumped Warblers are changing colors and looking very sharp.  Not too far away on cherry Lane, Hooded Orioles have returned to some palm trees at Kings Oak Place.  They have also returned to Jean Richmond's backyard in Alamo.  The male flew across the yard and into the bird bath while I visited yesterday.  She also has her White-throated Sparrow continuing, and its colors are electric right now.
Pacific-slope Flycatchers are around, too.  We have had them on each of the last two MDAS field trips and Fred Safier had one on Seven Hills Ranch Road west of the park this morning.
Sprung is springing, time to go birding.
Hugh B. HarveyWalnut Creek

Garin Regional Park - Hammond's Flycatcher

Bob Toleno
 

Juli Chamberlin and i birded Garin Regional Park today, where the best bird
was a Hammond's Flycatcher. It was foraging in an oak uphill from the creek
along the Dry Creek Trail, just a couple hundred meters past Jordan Pond.
The exact location we saw the bird is here:

https://goo.gl/maps/JoAtNuPfyJt

Lots of other recent arrivals including plenty of Pacific-slope
Flycatchers, singing Wilson's and Orange-crowned Warblers, one Hooded and a
few Bullock's Orioles, and a singing male Black-headed Grosbeak with a
nearby calling female, probably its mate.

Good birding,
Bob Toleno
Hayward

Male Brown headed cowbird

Greg Wilson
 

Has been in my backyard this morning a few times so far . It's been calling while hanging out in the persimmon tree.
Richmond View- at Amador and Sierra Ave.
Greg

Selasphorus Hummingbird

Elizabeth Leite
 

Yesterday, April 6th, mid-morning I had a fleeting view of a male Selasphorus Hummingbird at one of my feeders.  I checked eBird for other central Contra Costa  recent sightings and found several. Over the years  I've only seen one or two females or immatures in our yard so this was definitely a pleasure.

Elizabeth Leite
Lafayette/SW Walnut Creek border

Virginia Rail and Black-headed Grosbeaks at Jewel Lake, Tilden Nature Area on Apr 7

Pam Young
 

VIRGINIA RAIL and BLACK-HEADED GROSBEAKS at Jewel Lake, Tilden Nature Area, April 7, 2019

The VIRGINIA RAIL's repeated and distinctive call was at Jewel Lake, Tilden Nature Area on the morning of Apr 7 and last week.
Vocalization was similar to this: https://ebird.org/media/catalog?taxonCode=virrai&mediaType=a&region=California,%20United%20States%20(US)&regionCode=US-CA&q=Virginia%20Rail

And, BLACK-HEADED GROSBEAKS have returned - they’re both seen and heard along the Jewel Lake boardwalk.

Good birding!

Pam Young
Berkeley

Re: Virginia Rail and Black-headed Grosbeaks at Jewel Lake, Tilden Nature Area on Apr 7

Tom McGuire <tomario@...>
 

Nice, Pam! I was fortunate enough a few months ago to spot Virginia Rail on Wildcat Creek along the Gorge Trail! I captured a movie, too, on my Youtube channel (gambolinman).
Tom McGuireBerkeley CA

On Sunday, April 7, 2019, 1:39:49 PM PDT, Pam Young via Groups.Io <pamyoung2=mac.com@groups.io> wrote:

VIRGINIA RAIL and    BLACK-HEADED GROSBEAKS at Jewel Lake, Tilden Nature Area, April 7, 2019

The VIRGINIA RAIL's repeated and distinctive call was at Jewel Lake, Tilden Nature Area on the morning of Apr 7 and last week.
Vocalization was similar to this: https://ebird.org/media/catalog?taxonCode=virrai&mediaType=a®ion=California,%20United%20States%20(US)&regionCode=US-CA&q=Virginia%20Rail

And, BLACK-HEADED GROSBEAKS have returned - they’re both seen and heard along the Jewel Lake boardwalk.

Good birding!

Pam Young
Berkeley

Hooded Orioles

Jackie Bobrosky
 

FOS Hooded Orioles have arrived in my yard, finally. This year and this morning, a male and female together have discovered my hummingbird feeders. In the past, the male arrives in March then the females and family members show up. Love this migration stuff.


Jackie Bobrosky

Old Martinez Neighborhood

Tilden Nature Area, Jewel Lake

Mike Shannon
 

I took a nice though brief hike from Indian Head to Jewel Lake. There was a small group of bushtit in the low bushes to the left of the trailhead (up a few steps). I heard Pacific Slope Flycatcher throughout the park and got a glimpse of one down near the lake. I hiked the secondary trail that more or less follows the creek on the side opposite of the main path. I saw the Black Headed Grosbeak high up in the tallest trees. There were Wilson's Warblers where the trail comes along the backside of the lake. Standing there for awhile I saw Song Sparriw ( not shy). There was a vireo, I think it was Huttons but short of a DNA test, I hesitate to positively identify him. The face marks were wrong for warbling vireo which leans me toward Huttons. An Oak Titmouse showed itself. There was another warbler, larger than the easily recognized Wilsons. I think it was a Yellow Warbler. A Stellars Jay was hanging around as were a couple of Mallard. I heard hummingbirds a few times but didn't take time to find them. Crows and Scrub Jay were here and there. Juncos were hanging around the footbridge along with more Bushtit.

I went around to the other side of the lake and listened to that damn Virginia Rail sounding off right in front of me and I could NOT see him. I am quite sure he was mocking me and a few others who gathered around to try and find it.

In the trees above was a Downy Woodpecker, the white streak down the back was evident.

All in all a fine morning of birding.

Mike Shannon
Castro Valley

Brushy Peak - Meadowlarks and others

Mike Shannon
 

Took a hike today up the west side loop at Brushy Peak and spotted numerous Meadowlarks sitting on the fence posts. Watched a beautiful red tailed hawk hunting at the top of this trail. Also, many red winged blackbirds, a few Scrub Jays and at least one song sparrow. There was a Northern Harrier up there as well and we saw him again (or his twin) down at the bottom.The highlight was a Burrowing Owl sitting at his burrow, watching us watch him.Mike ShannonCastro ValleySent from my Verizon, Samsung Galaxy smartphone

Mitchell Canyon Calliope Hummingbirds 4/10

Teale Fristoe
 

Yesterday Phil Georgakakos and I had a great day exploring Mitchell Canyon on the northern side of Mt Diablo. We started by walking down the Mitchell Canyon Fire Road until it started heading uphill, then we backtracked to White Canyon, taking Red Road then Black Point Trail for maybe a quarter of a mile. On the way back to the parking lot we took Globe Lily Trail.

It was too early for globe lilies and many migrants, including most warblers, flycatchers, and bunting type birds. However we saw many Hammond's Flycatchers throughout the canyon and heard two Black-headed Grosbeaks. The highlight of the trip for me were a whopping 8 Calliope Hummingbirds, almost all males that were displaying and posing on exposed branches. We saw these birds in several locations along Red Road, Black Point Trail, and Globe Lily Trail.

We were unfortunately too late in the morning to hear Common Poorwills, but we did find the headless corpse of one on Red Road. Does anyone know what kind of predator would kill a bird like that and only take its head?

Our full checklist with a few pictures can be seen here: https://ebird.org/view/checklist/S54806350

Happy spring,
Teale Fristoe
Berkeley

Re: Mitchell Canyon Calliope Hummingbirds 4/10

Bev
 

Globe lilies have been out for 2 weeks, on their trail, but also on the main fire road.

Thank you for the bird info!

Bev

-----Original Message-----
From: Teale Fristoe <fristoe@...>
To: EBB-Sightings <EBB-Sightings@groups.io>
Sent: Thu, Apr 11, 2019 7:49 am
Subject: [EBB-Sightings] Mitchell Canyon Calliope Hummingbirds 4/10

Yesterday Phil Georgakakos and I had a great day exploring Mitchell Canyon on the northern side of Mt Diablo. We started by walking down the Mitchell Canyon Fire Road until it started heading uphill, then we backtracked to White Canyon, taking Red Road then Black Point Trail for maybe a quarter of a mile. On the way back to the parking lot we took Globe Lily Trail.

It was too early for globe lilies and many migrants, including most warblers, flycatchers, and bunting type birds. However we saw many Hammond's Flycatchers throughout the canyon and heard two Black-headed Grosbeaks. The highlight of the trip for me were a whopping 8 Calliope Hummingbirds, almost all males that were displaying and posing on exposed branches. We saw these birds in several locations along Red Road, Black Point Trail, and Globe Lily Trail.

We were unfortunately too late in the morning to hear Common Poorwills, but we did find the headless corpse of one on Red Road. Does anyone know what kind of predator would kill a bird like that and only take its head?

Our full checklist with a few pictures can be seen here: https://ebird.org/view/checklist/S54806350

Happy spring,
Teale Fristoe
Berkeley

Royal Tern Alameda

John Luther
 

Hi All,
While doing a bird survey at the Alameda Reserve, Alameda Point, Alameda I observed a single Royal Tern.  It was calling while flying over and by me at about 9:30 AM today April 11.  This area has no public access, but the bird could go north, south or west over or along the bay.  It was flying NW towards SF when last seen.  It had very white underwings with no large black area as seen on Caspian Terns also in the area.  The bill was orange red not the deep red of the Caspian Terns and the bill was thinner (but not as thin and long as an Elegant Tern) than the Caspian Terns.  The overall bird seemed less bulky "slimmer" than a Caspian.
Also seen in the area by the breakwater was a single Brant and 8 Brown Pelicans.  There are now over 200 Caspian Terns at their colony in the SF county portion of the Alameda Reserve. I looked for the Royal Tern in the colony area, but did not find it there.  
John LutherOakland

Northern Pygmy-Owl at Sunol Regional Park

Donald Lewis
 

Thursday, our small group had a glorious morning at Sunol regional park,
starting at the last parking area at 8am. We heard a NORTHERN PYGMY-OWL not
far past the bridge on the Ohlone Camp trail (the main road). Other
highlights of the 48 species seen were 2 WESTERN KINGBIRDS and 2 BULLOCK'S
ORIOLES on the way back near the cattle pond on the McCorkle trail. But
besides the birds, the wildflowers are spectacular, especially along the
Canyon View trail as we made a loop return from Little Yosemite to the
parking lot.



eBird list compiled by Judith Dunham at
https://ebird.org/shared?subID=UzU0ODQyNTQ2
<https://ebird.org/shared?subID=UzU0ODQyNTQ2&s=t> &s=t .



Don Lewis

Lafayette, CA

Mitchell Canyon Nashville Warblers, etc.

Derek
 

Following up on a couple other interesting posts this week on Mitchell
Canyon, I decided to make that my destination this morning and it
didn't disappoint. I set personal highs for both Nashville Warbler
(4) and Black-throated Gray Warbler (16). Other highlights were
Hammond's Flycatchers, Hermit Warblers, and a single Calliope
Hummingbird. The 6 mile hike focused mainly on Black Point Trail that
I took all the way around the mountain though it was too early for
Sage Sparrows on the west side. A one-mile stretch of that trail was
very productive early morning with warblers galore with many good
horizontal views.

This is the earliest in the migration I've ever birded Mitchell Canyon
and despite it being too early for some key species, I found the
activity level very high. And of course the wildflowers are added
bonus.

Link to Ebird post of 56 species seen:
https://ebird.org/view/checklist/S54919818

Derek Heins

April 14, 2019: Black Scoters Continue at Richmond Marina

Patricia Mahoney
 

Sunday, April 14, 5 PM: Two adult male Black Scoters continued in the corner of the Richmond Marina, close to the pedestrian path. They’re looking good and staying together: much snoozing, some preening, stretching and swimming... excellent binocular views. No vocalizations during my 20-minute visit (last stop on a great spring birding day!). The Black Scoters kept company with Surf Scoters, Western Grebes, a Clark’s Grebe, Horned Grebes and Coots. A male Surf Scoter dove and resurfaced with a whole mussel which it manipulated and then swallowed easily. Two Black Oystercatchers foraged along the edge of the rocks below the path.

I parked at Shimada Friendship Park and walked a block to the harbor corner; I spotted the Black Scoters from a half-block away:
Shimada Friendship Park
Marina Bay Pkwy & Peninsula Dr
Richmond, CA

Pat Mahoney
Hayward

Black-headed Grosbeak

mbstern2
 

FOS in our Lafayette yard yesterday. About 2 weeks after usual appearance over the years.
Maury Stern

Ballena Bay Terns

Bob Richmond
 

Terns seen this afternoon between 1:10 and 2:20 at Ballena Bay. Most were on the concrete breakwater.
2 Elegant Terns.1 Least Tern heard and then seen over SF Bay.135 Forsters Tern.
Bob RichmondAlameda