Hasan

These are White-faced.

@AlexHenry I don't know, that seems a bit of an arbitrary constraint and is certainly very much a personal preference. Clearly, if a bird ended up in a photo, you, at least in some capacity, saw the bird in the field, so how the line is drawn is not quite clear to me. As to the purpose of ebird, while when read alone that interpretation might seem reasonable, I think in context it's pretty clear that the data collection part of ebird is to assess bird populations and trends, not as a social study on the way in which birders observe. IF you document a species at a location and have photographic evidence that it was there, regardless of whether you noticed it or not it would seem very much in the spirit to include the sighting, as it provides useful information to other birders and scientific study. Now, whether you count that on personal lists is totally to one's discretion.

@AlexHenry @Connor Cochrane Why not Cal Gull for the first bird with that downward curved gape and smallish, strongly bicolored bill?

This

Try Red-breasted Nuthatch

Both are Pigeon Guillemot.

Sapsuckers have large white patches on their wings. The only woodpecker this seems reasonable for is Lewis's Woodpecker, but I think this is better left unidentified- I'm far from certain that this even is a woodpecker.

From this angle these are better left Scaup sp.

I wouldn't recommend that. Video is a bit more complicated than just a string of photos taken by the camera- because of bitrate limitations there is compression (unless you're shooting on a very very expensive camera), meaning if you try to separate it out into frames it will probably be a blurry, pixelated mess.

In winter Dowitchers are best left unidentified. Long-billed, of course, is the more expected species here.