SF Bird Club March Newsletter

February Recap

In case you missed it you can find last month's newsletter here: february newsletter

february migratory bird spotlight & member submissions (migratory)

Last month's activity/theme was finding migratory birds who make the bay their winter home.

First up a few of us birders headed to the north bay to do some marsh hopping in hopes of finding shorebirds and waterfowl. I brought my camera but forgot the sd card so in lieu of photos I'll instead share a couple of ebird checklists: marsh 1 and marsh 2.

We saw pretty good diversity spotting roughly 25 species at each of the two spots we stopped at. The highlights for me were the white-tailed kite (Elanus leucurus), northern harrier(Circus hudsonius), the forster's terns (Sterna forsteri), and what I think was somehow a nesting pair of mute swans(Cygnus olor). A lot of the birds we spotted were winter visitors including some common mergansers (Mergus merganser), tons of buffleheads (Bucephala albeola), greater yellowlegs (Tringa melanoleuca), and a boatload of cackling geese (Branta hutchinsii).

Also as a fun little bonus we spotted a pacific gopher snake (Pituophis catenifer catenifer) and some river otters (Lontra canadensis).

egret and otter
the river otter and a snowy egret (Egretta thula) displayed some interesting behavior. the snowy egret was very territorial and would chase away the otter as well as some other birds. this photo is a still from a video of the egret pestering the otter
gophersnake
adam and the gophersnake
jan
janet spotting some marsh wrens
geese
this picture doesn't really do it justice but it was fun to watch the cackling geese come out in force

people also spotted some winter birds on other outings


In addition to the buffleheads mentioned in the marsh outing Adam and I spotted some in Golden Gate park. I love watching these guys dive under again and again they're relentless

buffleheads
bufflehead (Bucephala albeola)



Janet spotted a Townsend's Warbler (Setophaga townsendi) in downtown SF.

warbler
townend's warbler (Setophaga townsendi)



I spotted some cedar waxwings (Bombycilla cedrorum) in a tree in the east bay. I don't see these guys often but I think they are one of the most beautiful birds we can find here in the winter.

cedar waxwings
cedar waxwings (Bombycilla cedrorum)



I also saw plenty of birds on a non-birding related weekend trip to Carmel including some surf scoters (Melanitta perspicillata). Very fun bird to sit and watch; they float around all nonchalant like waiting for a wave to break right on top of them and then dive under water at the last second. If I could try out being any bird the surf scoter would have to be up there towards the top of my list. They look a bit strange with their see-through bill thingie, but oddball looks aside they seem like they have a good time. Always be on the lookout for this trait when birding; you'll find some birds like to have a good time and others less so. I'm pretty sure the surf scoters are in the former category.

surf scoters
surf scoters (Melanitta perspicillata)



Another birder and I went to ocean beach on a friday evening for non-birding related reasons but we did spot some of the sanderlings (Calidris alba) I mentioned in the last newsletter.

sanderling
a very artsy (blurry) photo of some sanderlings (Calidris alba)



Member Submissions (non-migratory)

Thank you to everyone who sent me photos of the birds they saw! In addition to the migratory birds shown above some people also spotted some of the birds we see here year-round.



Sarah sent in a photo of an American Robin (Turdus migratorius)

robin
American Robin (Turdus migratorius)



George and Megan spotted some Northern Flickers (Colaptes auratus) in a tree in the east bay. The buffleheads make their homes in the cavities dug by these guys!

Northern Flicker (Colaptes auratus)



Spotlight Bird: Surf Scoters (Melanitta perspicillata)

surf scoters
another picture of the scoters i spotted in carmel

So I was going to choose a different bird but I geeked out pretty hard on the surf scoters I spotted in Carmel. I thought they were called scooters not scoters and that contributed to the coolness but scoter is still a cool name.



Fun Surf Scoter Facts:

  • they're only here for the winter; in the summer they breed super far north up in canada and alaska
  • they are a bit strange looking:
    bufflehead
    picture of a surf scoter from Matt Davis from Macaulay Library
  • notice that hole in the bill? the specific name perspicillata is latin for spectacled which comes from the latin perspicere which means to see through. also the genus name Melanitta translates to black duck in ancient greek
  • they molt their feathers before migration and to do this they leave their nesting sites and go somewhere else where it's safe because they become temporarily flightless
  • like i mentioned earlier in the newsletter they are very fun to watch dive under waves; they wait until the last possible moment when the wave is about to break on top of them before diving underneath
  • they eat things on the ocean floor like mussels and clams but also other things like herring spawn

Bird Nests

hummingbird nest
anna's hummingbird nest in salesforce park downtown san francisco

I've been thinking about bird nests recently after listening to the recent ABA podcast episode that talked about the NYT article discussing the recent university of chicago study on snake skin in cavity bird nests. It found that using snake skin in cavity nests reduced risk of nest predation. Pretty cool!

I grew up getting to see house finch nests in my Nannu's yard and while not the most intricate nests, for a good example of an intricate nest check out a bushtit nest!, I was still impressed by how these birds were able to take twigs and cat hair and little scraps of whatever they found to build these beautiful little nests.

So the activity for this month is to try spot some bird nests. I'm no expert on bird nests and I'm not really sure if March is the best time to find a good variety of nests here in the bay, but there should still be some opportunities if you look close enough:)

Closeout

That's all; happy birding