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Neat fork pattern! I’m not too knowledgeable about black-tailed deer in particular, but I do know that in mule deer, the tines fork in a somewhat even branching pattern as seen here, while in white-tailed deer the tines all emerge from a main branch.
The first feather is definitely Barred Owl, but the second is Red-shouldered Hawk.
This is a primary wing feather.
I'd guess peacock secondary wing feather- proportions look about right and the markings(specifically, the lack thereof) are right for a feather in that placement. See this link- https://www.featherbase.info/en/species/...
The spots at the bottom indicate that it is, at least, some type of woodpecker.
Looks like you nailed it- https://www.fws.gov/lab/featheratlas/fea...
It's hard to narrow down when the feather is just a small body feather. It's definitely from a bird in Passeridae, perhaps robin or sparrow.
Looks like a Dove or pigeon feather. Columbiformes have a unique body feather structure that sets them apart from other small songbird body feathers. The thicker rachis is one of the different traits.
Looks like a pigeon primary wing feather
Looks about right! Great find!