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Actually, without being able to see the crown well, the ages of Wilson's Warblers are not discernible just from the presence of black on the crown, as immatures have full black crowns in fall. There is a subtle difference between the ages of males in the shape of the rear edge of the crown, at least in Rocky Mountain Willies. I don't know if that difference holds true for the other two subspecies.

Juvenile Red-shouldered Hawk, worn adult-ish female Indigo Bunting

https://cobirds.org/CFO/ColoradoBirds/InTheScope/13.pdf The duck in the bottom pic looks most like a wigeon, but I could Gadwall. I'm quite happy with "dabbling duck sp." for the bird in the shoveler pic.

And "Traill's" is a species group (Willow Fly and Alder Fly) of Empidonax flycatchers -- or empies. I dislike the use of "empid" as that implies that there is a bird family with the name of Empidae, which there isn't. As in corvids are in the Corvidae, Tyrannids are in the Tyrannidae, and larids are in the Laridae. Just sayin', though I am a known curmudgeon.

It's a Cooper's Hawk in juvenile plumage, thus is a juvenile.

'xxx' is intended as a placeholder. 'Duck sp', 'Shorebird sp', 'Hawk sp.', etc. I hope that clears it up, and I apologize for the confusion.

I would also probably go with Northern due to the apparent buffy/yellowish wash to the underparts and dense streaking on the throat.

Northern for me based on the dense streaking and buffy supercilium.

Supercilium generally comes to a point at the rear in Northern and flares in Louisiana. The shape of the tail movements are also different, with Northern bobbing the back end, essentially, straight up and down, while Louie moves its rear end in an ellipse, sort of.

Absolutely Common. There just are no Forster's with anywhere near full black crowns in September. The bill is relatively thin, the legs are short, and neither bill nor legs look at all orange.

This is a young-of-the-year Tennessee, thus has no "breeding plumage." The mix is of juvenile plumage and formative plumage feathering. I love these sorts of birds!

In the first pic, the top right bird is a juvenile, while the other is a one-year-old.

Semis at this time of year generally have very little in the way of dark coloration on the underparts. I'd go with Least for at least some of these birds. Additionally, they mostly look brown, whereas Semipalmated and Western are both, essentially, gray species.

Thanks, Tony. I'm glad to have you back. I really appreciate your expertise on here.

Glad to see you back, Tony.

I'd go with a wood-pewee, as the legs are too short to be that of an Acadian. All members of the genus Contopus are short-legged, while most Empidonax have fairly long legs. Interestingly, Hammond's has relatively short legs.

Thanks, Although I have been seeing Merlins for a week or so, this is the first Cooper's I've seen this fall. Looking through my collection, I see that I first saw one last fall on Sept. 22 in the same area and saw them into December. I still haven't seen an adult.

This is definitely not a Least. Structure, head shape and primaries rule that species out sufficiently. I still say Pewee, but Acadian is the other option.

Yes, this is an immature Cooper’s Hawk. Note the hooked small bill and long barred tail. While adults have gray upperparts, a black cap, gray nape, red eye, pale, reddish-streaked underparts, immatures have brown upperparts, white, heavy thin streaked underparts, and a yellow eye. In flight, note the rounded tail and white terminal band. Immature Sharp-shinned Hawks differ from immature Cooper’s by their stockier build, thinner legs, and broad, blurry streaking. Immature Sharp-shinned Hawks also have a more square-tipped tail.

FWIW...not certain, but I like Acadian here.

So it is a rehabilitating/rescue bird... which explains the close-up shot.

I agree with Veery here. The Newfoundland population/race is much browner overall and darker in the face. We have banded some and they look nothing like the "typical" veery

Where'd you see them in Phoenix?

Most fall Bay-breasted look like the OP's bird. I saw probably 50 this past weekend. Here's a similar bird from google:

This bird doesn't look like a Least to me. In my eyes, that eyeing is enough to lean Acadian.

I'd say that with white on the wing linings and the tail only a little longer than the head and neck (and bill), they're Bald Eagles. Edit: Hm, why didn't I see TBN's response just a minute ago when I was writing mine?

Both are young Bald Eagles. A Golden wouldn't have that much white mottling on the underwing coverts, especially close to the body like that.

Braeside Ont. Today

Welcome to Whatbird! You got it right on target! This is a nonbreeding adult Royal Tern. Breeding: Adults are large, have pointed wings, a full black, shaggy crest, a bright, heavy orange bill, and a long forked tail. Caspians have heavier, redder bills with black tips, are bigger overall, and have darker primaries. Elegants have a thinner, longer bill. Common/Forster’s are smaller, have a thinner, shorter, dark-tipped bill, and have orange (not black) legs. Nonbreeding: Similar to breeding but have a narrow shaggy black band (not a full crest) at the back of the head. Caspians have a heavier, dark-tipped bill with a fuller black crown. Elegants have a longer, thinner bill and wider black crest patch. Common/Forster's are smaller and have a blacker, thinner bill.

1. The pale crescents near the wingtips suggest Red-shouldered Hawk. 2. I'm thinking female Indigo Bunting.

Welcome to Whatbird! This is a female/immature male Magnolia Warbler. Adult males have a black neck band creating a necklaced look. White undertail coverts and black-tipped tail are diagnostic at all ages. Female/immatures have a gray head and 2 white wingbars. This is an adult male Wilson's Warbler. Note the yellow overall and black cap.