Date   
San Leandro Marina

Bob Richmond
 

Seen today -

1 Yellow-billed Cuckoo in some eucalyptus trees on the golf course opposite the south parking area for Marina Park. The trees are SE of the grove of poplars that had a Yellow-throated Vireo in early June of 2017.

Bob Richmond

Re: San Leandro Marina

judisierra
 

Since this is a threatened species in Calif. it's probably not a great idea for hoards to descend on it.
--------------------------------------------

On Tue, 6/12/18, Bob Richmond bobrichmond94544@... [EBB_Sightings] <EBB_Sightings-noreply@...> wrote:

Subject: [EBB_Sightings] San Leandro Marina
To: "EBB Sightings" <ebb_sightings@...>
Date: Tuesday, June 12, 2018, 4:53 PM


 









Seen today -
1
Yellow-billed Cuckoo in some eucalyptus trees on the golf
course opposite the south parking area for Marina Park. The
trees are SE of the grove of poplars that had a
Yellow-throated Vireo in early June of 2017.
Bob
Richmond

Sent
from Yahoo Mail on Android









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Hutton's Vireo Nest

Anne Krysiak
 

A pair of Hutton's Vireos built a nest on the crossbeam under my patio roof. We first noticed the birds working on the nest in early May. On May 25, the mama began sitting on the nest full-time. The male bird was hanging around. When he would call, she would leave the nest. This past Saturday, I noticed feeding behavior for the first time. It looks like both birds are feeding the chicks although only the mom sits on the nest. There were three eggs that I could see, but I have only seen two heads sticking up from the nest. 


I have pictures to share but am not certain how to upload them. 

Bradford Island access notes

Logan Kahle
 

Hi all,

With the recent discussion about Bradford birder access, I thought it would be relevant to chime in what I know about the topic.

As I am currently in the field, I am not able to research this as thoroughly as I would like. However, I still believe there is useful information here that would be of interest to potential visitors.

According to Department Engineer for the Delta Water District that Bradford is part of, the island ferry and the main levee road are entirely public property. I am still researching whether or not the roads through the middle of the island are public as well. As long as one does not trespass on private land on the island, which is not necessary to view the vireo or most other birds present, there should be no issues. As Dave mentioned, there are a couple specific individuals who do not take too kindly to visitors, but visiting the island is entirely legal granted one does not trespass.

As for the birds, it is of great import in my opinion to keep close tabs on this/these vireo(s). This is a state and nationally listed taxa, and as such breeding evidence could have a large number of conservation implications for the island. I visited the site on 6/9 and also had a Willow Flycatcher at the same location as the vireo. While almost certainly a migrant, Southwestern Willow Flycatchers, another listed taxa, once bred all the way up to Stockton (per Grinnell and Miller) in the 1940s. Should there be a Willow Flycatcher at this site in a week, it is very much worth keeping an eye out for any nesting activity (may be a bit of optimistic thinking on my end but heck, it is at the exact same spot as a Bell's Vireo...)

Anyway, I just hope none are too disheartened by a couple sour apples on the island. Landowners often, very reasonably, do not like people in the vicinity of their land, but in this case I feel the importance of keeping tabs on and documenting one of the most ecologically and conversationally important species in the Bay Area right now outweighs these concerns of privacy. The levee road is entirely public and any issues the neighbors have are personal and not legal matters. As such it seems reasonable to me that overall conscientiousness and respect towards the residents of the islands should be all that is needed. That said, this argument is moot if people are trespassing or otherwise exhibiting bad behavior, so please stay on the levee when on the island.

In any case, I hope many others get to visit the island in coming months. I was told that if being accosted by landowners ever becomes an issue, this is an problem that should be brought to the board of directors of the island to address. Please do mention if you have any issues with landowners. It would be great to make this situation as pleasant for the birders and residents alike. Ultimately, I believe this location is likely one of the top five or so  birding locations in the county and it would be a shame if people did not visit this under-covered gem out of fear of legal ambiguity. Good luck out there!

Good birding,
Logan Kahle
San Francisco/Willows, CA

Rose-breasted Grosbeak

Kay Loughman
 

For the ninth time in the last twenty years, we've had a male Rose-breasted Grosbeak visiting our feeders.  This year it showed up on June 13, was not seen on June 14; but reappeared today (June 15).  Regrettably, this feeder is visible only from inside the house, and I have not been able to see where the bird goes when the scrub-jays assert themselves - (possibly Garber Park).  See  pictures on my website.

Kay Loughman
in the hills on the Berkeley/Oakland border


Virus-free. www.avast.com

Bradford Island access issues, June 15th

Jeff Hoppes
 

 I birded Bradford Island this morning (Friday, June 15) in search of the Bell's Vireo. The vireo was singing at the previously noted location between 9:30 and 11. Shortly after 11 I and another birder were asked to leave by an island resident who told us that the willow patch with the vireo was his family's property, and that birding was not permitted at that location (even from the road), as the road itself was also private property. I don't have the expertise to evaluate the accuracy of that claim, but thought it was worth passing along to this list for the information of birders considering future visits to the island.

 Good birding,
 Jeff Hoppes
 Richmond

Probably Costa's Hummingbird

Steve Huckabone
 

This morning while driving Mines Rd I stopped at a house that had 3 hummingbird feeders hanging from the second story patio. I pulled off the road the best I could and watched several hummingbirds coming and going. One looked good for an adult male Costa’s but could not get pic or good view. I got out of the car and walked along the shoulder to get a better vantage point and snapped a few pics of a sub-adult male. After I got home and looked at the pic’s I thought the one good pic showed a sub-adult male Costa’s. See eBird report https://ebird.org/view/checklist/S46615503. The interesting field mark is the gorget coming in at the corner of where the gorget will be eventually. I don’t have allot of experience with Costa’s but books and photos show this field mark and description for sub-adult male Costa’s.  The house is on the right side when traveling south from Livermore in the area where there is a small group of homes on both side of Arroyo Mocho creek. Sorry didn’t record mile marker. Feedback appreciated.

 

Good birding.

 

Steve Huckabone

Alameda County

Livermore, CA

 

Hayward Regional Shoreline

Bob Richmond
 

Seen today

A Black Tern was seen in Hayward Marsh from the Least Tern Sign.

Bob Richmond

Marsh Creek and Big Break Trails--Good Raptors, Blue Grosbeak

Lee Friedman
 

Yesterday morning in Oakley I birded Marsh Creek Trail from E. Cypress Road north to the junction with Big Break Regional Trail and followed the latter west for 1 mile before returning. My realized hope was to see a Blue Grosbeak (along the Marsh Creek section), and I was pleasantly surprised by all of the raptor action in the large fallow area (former agricultural land) west of Marsh Creek and south of Big Break--3 American Kestrels, 1 Swainson's Hawk, 1 Red-Tailed Hawk, 1 Northern Harrier, and a coyote to boot. There was also a Cooper's Hawk on the Big Break side.


A full eBird list with some photos is here:

https://ebird.org/view/checklist/S46659592


Good birding,

Lee Friedman

Osprey in the hood

Joel Denney
 

Never seen one here in Maxwell Park, Oakland in 27 yrs. It was hauling something about the size of a squirrel down the street, stopped on a pole for a moment before a couple agitated crows chased it toward the flat lands - too quick for me to see its catch. Anybody missing a large carp?

Bradford Island

mskrentz
 

Four of us birded Bradford Island today arriving on the 9:00 AM ferry and leaving on the 1:00 PM ferry.
We heard the Bell's vireo singing on territory at the previously reported location. It also perched and return to the same perch on a bare branch fairly had in the willow. Seen well in a scope.

Unfortunately, it is no longer possible to drive the road in the middle of the island as on the southern side near the ferry landing, the gate on the road has been locked. On the northern side, there is a turn to the road near some houses; however about halfway down the island, another gate was locked and we had to turn around. The part that we did drive had high bushes on both sides so it was not that great for finding birds. It was much better on the levees.

We ran into the same person that Jeff Hoppes did and got the same message. The guy is about 60 years old and drives a red truck with a dog (border collie or Australian Shepherd type. He lives north of the vireo location past the other dock and his property is entirely enclosed with a wood fence on the right side of the road as you travel north with Eucalyptus trees near the fence. We ate lunch at that location and he drove up and said we would have to leave at first claiming the island was private. We mentioned that the levee road was public property and at first he said agreed but then claimed we were on his private property since he has an easement on the other side of the road. When I again mentioned that we had check with delta engineers, he said," Would you like to have me check that check that by me calling the sheriff." Tthat is really a idle threat as its an island and I doubt very much that the sheriff's department  are going to run out and take the ferry there to get someone off levee roads. However, to avoid further escalation we left while he stayed in his parked truck until we drove off.  He is a thoroughly unpleasant person who wants the island to be private. He mentioned that Webb Island didn't allow people to get off there and obviously wished his island was the same.

I had done some checking on the island before going. There are many parcels of land on the island, few houses and although they pay Contra Costa taxes on the properties  and a reclamation tax to keep the ferry open, this is one of the places that exists only because of tax payers keeping the levees repaired.

We also saw at least 5 Blue Grosbeaks and heard at least 4 chats.

Mary Krentz
Oakland, CA


Re: Bradford Island

richard s. cimino
 

Great report.

Was he wearing a Make America Great Cap?

Rich Cimino



From: EBB_Sightings@... <EBB_Sightings@...> On Behalf Of mskrentz1@... [EBB_Sightings]
Sent: Thursday, June 21, 2018 3:35 PM
To: EBB_Sightings@...
Subject: [EBB_Sightings] Bradford Island





Four of us birded Bradford Island today arriving on the 9:00 AM ferry and leaving on the 1:00 PM ferry.

We heard the Bell's vireo singing on territory at the previously reported location. It also perched and return to the same perch on a bare branch fairly had in the willow. Seen well in a scope.



Unfortunately, it is no longer possible to drive the road in the middle of the island as on the southern side near the ferry landing, the gate on the road has been locked. On the northern side, there is a turn to the road near some houses; however about halfway down the island, another gate was locked and we had to turn around. The part that we did drive had high bushes on both sides so it was not that great for finding birds. It was much better on the levees.



We ran into the same person that Jeff Hoppes did and got the same message. The guy is about 60 years old and drives a red truck with a dog (border collie or Australian Shepherd type. He lives north of the vireo location past the other dock and his property is entirely enclosed with a wood fence on the right side of the road as you travel north with Eucalyptus trees near the fence. We ate lunch at that location and he drove up and said we would have to leave at first claiming the island was private. We mentioned that the levee road was public property and at first he said agreed but then claimed we were on his private property since he has an easement on the other side of the road. When I again mentioned that we had check with delta engineers, he said," Would you like to have me check that check that by me calling the sheriff." Tthat is really a idle threat as its an island and I doubt very much that the sheriff's department are going to run out and take the ferry there to get someone off levee roads. However, to avoid further escalation we left while he stayed in his parked truck until we drove off. He is a thoroughly unpleasant person who wants the island to be private. He mentioned that Webb Island didn't allow people to get off there and obviously wished his island was the same.



I had done some checking on the island before going. There are many parcels of land on the island, few houses and although they pay Contra Costa taxes on the properties and a reclamation tax to keep the ferry open, this is one of the places that exists only because of tax payers keeping the levees repaired.



We also saw at least 5 Blue Grosbeaks and heard at least 4 chats.



Mary Krentz

Oakland, CA







[Non-text portions of this message have been removed]

Bradford Island follow-up to post

mskrentz
 

The unpleasant person also has an old fire truck parked across the road from his house as well as a boat trailer I would suggest just not hanging out in that spot.

Also sorry about the typos; sent off too soon. To clarify the bird was fairly high in the willow.

Mary Krentz
Oakland, CA


Fw: Press Release: WEST NILE VIRUS ACTIVITY INCREASING IN ALAMEDA COUNTY

Bob Richmond
 

This includes Winton Ave. at the Hayward Regional Shoreline.

Bob Richmond


----- Forwarded Message -----
From: "Alameda County Mosquito Abatement District"
To: "bobrichmond94544@..."
Cc:
Sent: Fri, Jun 22, 2018 at 4:02 PM
Subject: Press Release: WEST NILE VIRUS ACTIVITY INCREASING IN ALAMEDA COUNTY

For Immediate Release
Facebook Join My List Logo
Media Contact:
Erika Castillo
Regulatory & Public
Affairs Director
510-783-7744
erika@...

June 22, 2018
WEST NILE VIRUS ACTIVITY INCREASING IN ALAMEDA COUNTY
The presence of both West Nile virus positive dead birds and mosquitoes in Union City warrants caution.
HAYWARD, CA - To date, Alameda County Mosquito Abatement District has detected 4 dead birds and 7 groups of mosquitoes which have tested positive for West Nile virus.  The birds were collected from Union City and Castro Valley. The mosquitoes were collected in Union City and Hayward.  Recent West Nile virus positive detections indicate heightened virus transmission in the Union City area west of Interstate 880.

Intensified efforts are focused on locating areas of standing water where the West Nile virus positive bird and mosquito were discovered. Residents are urged to be proactive by eliminating sources of water where mosquitoes can breed and protecting themselves from mosquito bites. If you come across a dead bird please report it by calling (877)WNV-BIRD or online at www.westnile.ca.gov.

"Infected mosquitoes in the area means there is is an increased risk for West Nile virus transmission to people," says Laboratory Director Eric Haas-Stapleton.  "Protect yourself and your family by applying mosquito repellent when spending time outdoors.  Containers of water in yards should be dumped and drained, or tightly covered to prevent mosquitoes from breeding in your neighborhood."

Mosquitoes may breed in almost any type of standing water including but not limited to catchbasins, stormdrain systems, and swimming pools. Neglected swimming pools continue to be a mosquito breeding issue in Alameda County.  If you or anyone you know has an unmaintained swimming pool please inform the District so the proper treatment can be made.
As of June 22nd, California has had 27 dead birds, over 30 mosquito samples, and 9 humans test positive for West Nile virus.  

Reduce the risk of contracting mosquito-borne diseases by following these guidelines:
  • DUMP/DRAIN standing water on your property because that is where mosquitoes develop.
  • DAWN/DUSK is when mosquito activity peaks, limit outdoor activities during this time.
  • DEFEND yourself from mosquito bites by wearing long pants and long-sleeved shirts and apply insect repellent containing EPA-registered active ingredients such as DEET, Picaridin, IR3535, or Oil of lemon eucalyptus.
  • DOOR/window screens should be in good repair with no tears or holes.
West Nile virus is transmitted to people and animals through the bite of an infected mosquito.  There is no cure for West Nile virus.  Approximately one in five people who are infected with West Nile virus will develop symptoms such as fever, headache, body aches, joint pains, vomiting, or rash.  Less than one percent will develop a serious neurological illness such as encephalitis or meningitis.  Adults over 50 years old and people with compromised immune systems are at increased risk of serious complications.  Anyone who develops symptoms should seek medical care immediately.

Horses are very susceptible to West Nile virus and vaccines are available.  Horse owners are advised to contact their veterinarians regarding timely vaccinations.

For information about mosquitoes, West Nile virus, or to request any of the District services visit www.mosquitoes.org or call (510) 783-7744. Residents can also request mosquitofish for their fish ponds, horse troughs, or neglected swimming pools at the the District office located in Hayward at 23187 Connecticut St.  For information concerning West Nile virus symptoms, prevention or testing please contact the Alameda County Public Health Department at (510) 267-8001.

Alameda County Mosquito Abatement District | 510-783-7744 acmad@... | www.mosquitoes.org
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Alameda County Mosquito Abatement District, 23187 Connecticut St., Hayward, CA 94545
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A few Contra Costa birds Friday June 29

rosita94598
 

Heather Farm Park in Walnut Creek had three heron species this morning; 3 Green Herons, one of which appeared to be young, an adult Black-crowned Night-Heron and a Great Egret.  The Caspian Tern made an appearance between 7 and 7:30, also.  We saw three species of swallow, Barn, Violet-green and Cliff.

By 9:30, Rosita and I headed to the Orinda side of Briones Reg. Park to look for the eBird reported Indigo Bunting.  We arrived at the parking lot about 10 and started walking within a few minutes.  It is almost a one mile walk, slightly uphill, so maybe we were at the right spot by 10:30 or so.  Two birders from Fresno, Rick and George, had just seen it fairly close to the Abrigo Trail at the Maude Whalen Camp.  After 1-1/2 hours, it was finally re-located briefly by them and Rosita, but I was caught on the wrong side and missed it.

Maybe it will work for me another time.

Hugh B. Harvey
Walnut Creek


Cooper's Hawk mobbed by hummers?

reintjesee@sbcglobal.net
 

On Sunday, a Cooper's Hawk flew past me about eye height in my backyard near Lafayette BART.  It was followed by three hummingbirds.  Does anyone know if hummers engage in mobbing behavior?  Or perhaps this was totally coincidental.  


Good birding

Ellen Reintjes

Re: Cooper's Hawk mobbed by hummers?

David Yeamans
 

Studies In Arizona conclude that hummingbirds nest near Cooper’s hawks where they enjoy protection from other predators. A family group of hummers could look like a mob. Maybe it was a mob. 
--
David Yeamans
There are more than two ways to skin a cat.  [Dr.Y]

Continuing Indigo Bunting in Briones Regional Park Tuesday July 3

rosita94598
 

The adult male Indigo Bunting reported many times over the weekend eBird, continued today across from the Maude Whalen group camp in Briones Regional Park.  This is most easily found by using the Bear Creek Road entrance to the park.  Turn left at the kiosk, park in that lot, then walk past the picnic facilities just under 1 mile, according to the park map.  You should be on the Abrigo Trail.  When you make it to a fork in the trail, take it, as Yogi Berra said.  Turn left, continuing on the Abrigo Trail, and you will soon come out to a large field of thistle.

I arrived a bit before 9:15 this morning and others had already seen the bird, albeit with somewhat distant views.  It is a very bright blue and at one point it sat on top of a thistle plant for a good 1/2 hour.

Also present in the same area was a Western Kingbird, a Western Bluebird family, a calling Ash-throated Flycatcher, heard Grasshopper Sparrows and California Quail.  At least one male Lazuli Bunting is also in the same area.

As you walk uphill, take time to see the pinkish/purple Farewell to Spring flowers.  Peterson's Pacific States Wildflowers calls it Herald-of-Summer.  It must be like the water glass half-full or half-empty. 

Hugh B. Harvey
Walnut Creek


Re: Cooper's Hawk mobbed by hummers?

Alan Howe
 

I once saw a hummer perched just below a golden eagle on Round Top. Quite a contrast & quite a body guard to have.

Alan Howe
North Oakland

On Monday, July 2, 2018, 9:49:42 PM PDT, David Yeamans davidralphyeamans@... [EBB_Sightings]


 

Studies In Arizona conclude that hummingbirds nest near Cooper’s hawks where they enjoy protection from other predators. A family group of hummers could look like a mob. Maybe it was a mob. 
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David Yeamans
There are more than two ways to skin a cat.  [Dr.Y]

Re: Cooper's Hawk mobbed by hummers?

Joel Denney
 

My partner just told me about watching a hummingbird harass a scrub jay. She noticed the jay moving oddly, then saw the little guy dive-bombing the jay. Fascinated, she watched as the jay eventually settled on a wire, the hummingbird then settling on the same wire at a distance. After a bit, the jay jumped off the wire, and the hummer immediately followed/attacked, chasing the jay down the block and out of sight.

"Never seen that before," my partner concluded.