Feathers found at the base of an Eastern Red Cedar in our front yard.
This is the visual reference that suggested Cooper's Hawk.
Feather Atlas
https://www.fws.gov/lab/featheratlas/feather.php?Bird=COHA_primary_adult
Over tens of square meters, I found these feathers, with the bulk along some pathways/openings in the understory.
I found one Great Horned Owl feather while finding these, so maybe a GHO was the predator and a COHA was the prey. (GHO feather: https://www.inaturalist.org/observations/34800237)
Must have been quite a fight from the looks of it!
I would have liked to have looked around more, but I had to get to work. I was 10 minutes late as it was!
Dozens of white feathers edged with golden brown. Under a large oak tree, feathers scattered over the brush for a circle 30 feet in diameter
20 white feathers, scattered over an area about 30 feet in diameter, under a large oak tree where the canopy is pretty thick, about half open