AlexHenry

Where and when was this taken? Looms like a Bluebird to me, maybe Mountain

Bird on the right looks like it could be American Goldfinch? I don’t know tough to tell what it is

Last bird is definitely a Red-tail with those dark patagial markings

The bird on the left is a Glaucous-winged. The bird on the right is a Herring Gull. The Herring Gull could possibly be Cook Inlet or Nelson’s to some extent, but without any further evidence I would probably just assume bleached Herring. The date is June

If I saw it in California I’d call it Gambel’s

It is a Pectoral

Here’s a picture of a juvenile California Gull for comparison. I’m not sure exactly when bill color changes to pink base, but it may vary between individuals https://macaulaylibrary.org/asset/171856831

For what it’s worth, adult Thayer’s aren’t really supposed to arrive until late Sept, and juvenile birds typically even later. September 20 would be a very early record for a juvenile Thayer’s, let alone September 9, and I don’t think there’s enough evidence in either case to rule out juvenile California. While not impossible, it would be very unusual. You could be right and I could be wrong, but either way I think you should be more careful with this ID and strive for more conclusive documentation (ie, spread wing pics)

Yeah for sure

I’m not sure it for some reason I think juvenile California. Could be wrong though and if you aren’t sure, leaving them unidentified is a good call

I agree the bill looks a bit strange. Maybe some extra growth on the uppermandible

Definitely an Empidonax flycatcher. I’m think Hammond’s with that tiny bill with a dark lower mandible. Primary length looks fairly long to me too.

Hard to make out tertial details. But I think so.

When was it taken?

I think they’re all the same bird, a Semipalmated