A global community of nature enthusiasts
photographing and learning about wildlife
That is a good size. What I can tell you is that it looks like a secondary feather and that it doesn't look like its from a hawk. On the hawks the bands go all the way through the feather not just one half. It's also not a turkey because they have the thin bands like that but again the bands go all the way across the feather not just half. Another thing that's confusing is that the bands are on the leading edge of the feather, when most birds with these type of markings have the bands on the trailing edge. Some game birds have markings on the leading edge but most would be to small for this feather. I wish I could help you more. What type of area was it found in. Obviously it's from a decent size bird if its 12 inches. Also check out not only birds found in that area but the immature plumage of those birds. Hope this helps.
Their is a great feather ID book called Bird Feathers a guide to N. American species. In Florida the only bird feather that has the type of blue/black/white combo is the Blue Jay. Swallow Tails and Mockingbirds don't have blue feathers. Mockingbirds have a black/white combo feather and Swallow Tails have mostly black with white base