Sparrow Confirmation

[MtnAg08]

These were seen this week in Avon, CO. I'm fairly confident is a Chipping Sparrow but I do live in American Tree Sparrow territory too so hoping maybe one of you vets can help confirm/tell me what to look for to differentiate the two. The other one I'm just not really sure. Thanks!

[Aidan B]

You are correct on the first one; it's a Chipping sparrow. On a tree sparrow, the lower mandible on the bill is yellow, not black.
https://macaulaylibrary.org/asset/645144379

Your second bird is a Brewer's Sparrow. Note the long tail, entirely brown body, and no white median crown stripe like in Clay-colored Sparrows

[MtnAg08]

Thanks for the tips. Never knew there were so many different sparrows until this year!

[Kevin]

Aidian's ID's are spot on, as usual.

[Charlie Spencer]

Thanks for the tips. Never knew there were so many different sparrows until this year!

33 sparrow species have been reported in CO, not counting numerous hybrids.

https://ebird.org/barchart?r=US-CO

[Lonestranger]

Thanks for the tips. Never knew there were so many different sparrows until this year!

33 sparrow species have been reported in CO, not counting numerous hybrids

Most birds have a 4 letter banding code but because of the large variety, and their sometimes overwhelming similarities, Sparrows are often given 3 letter banding codes. LBJ for Little Brown Job.

[Kansabirdguy]

I have a friend who loves sparrows and calling them that is a sure way toto get his ire up

[Kevin]

Sparrows are great birds! Plenty of them, easy to identify, fun to see!