redcoot

The right-most bird is a black-bellied plover, and there are three dunlin behind it.

I agree with Melierax.

I think that the male scaup is a greater. The head is significantly rounded, with no visible peak. I agree that the yellowlegs are Greater. Great pictures!

I got lucky with this Black-crowned Night Heron mid-stretch!

Pacific-golden Plover molt has recently begun:

I agree with Lesser.

I agree with Akiley.

1) I agree with Horned Grebe. From the 1st photo, there seems to be a pretty clear line between the white of the cheek and the black on the head. In Eared, the black tends to extend into the white cheek. I love the photo of it diving! 2) I agree with female Ruddy Duck.

I agree with Akiley. There doesn't appear to be any white on the black of the primaries here.

There are definitely greater-white fronted geese in photos 2 & 3. As for the white goose, do you recall seeing any brown stains on the head? It may help ID this bird.

Itʻs a scaup, but which kind of scaup might be tough to call... From these photos I would lean towards lesser, but wait for the input of others.

Hi! This bird was seen on January 6th, 2019 in Altadena, California. I'm thinking that it's a goldfinch, but I'm unsure of which kind. There seems to be a lack of streaking on the belly, pointing to an American? Is there a good rule of thumb for goldfinches? Thanks in advance!

I agree with Royal. If it is rare, congratulations!

Thank you! For some reason, I can't edit the original post.

Hello all! I was digging through some photos, and I found this shot, taken on January 6th, 2019, in Altadena, California. Could it be a Costa's? The tail has some white on it, the tail barely meets the wing tips, and the throat seems pretty clean. <a data-flickr-embed="true" href="https://www.flickr.com/photos/139504398@N05/33276095448/in/dateposted-public/" title="Hummingbird Sp. 1/6/19"><img src="https://farm8.staticflickr.com/7880/33276095448_5d5e9bbd2f_z.jpg" width="640" height="480" alt="Hummingbird Sp. 1/6/19"></a><script async src="//embedr.flickr.com/assets/client-code.js" charset="utf-8"></script>