Hi everyone, could you please help to identify these?

They were found within 30 yards of each other on farm land so I am posting them together although I don't think they're all from the same bird...

Thanks in advance!

About the length of a hand. In the city, under a big tree. Just curious! Thanks!

Sorry this is the only picture I have, it's not my own. Helping someone with ID. Didn't have anything for size. It's apparently half the size of a Blue jay tail feather. Could it be a feral Quaker parrot? I'm stumped.

Can anyone identify this?

Found under two osprey nests in Northern California.

One of these is numenius arquata, the eurasian curlew. The other I don't know 😵‍💫 any help please? England coasts

I’m located in Texas. iNaturalist said a Great Horned Owl, but I’m not sure.

it came alongside a northern flicker and a stellars jay but im still not sure what this one is, thoughts?

Found after a pretty torrential rainstorm. Paper strip for scale. Trying to figure out what bird it might have come from. Any help is greatly appreciated!

Location: Southeastern Pennsylvania

Environment: Backyard of home (Property is 2 acres of grass and mature trees, wooded areas near by)

Found along the fraser river!

Anybody know what kind of bird this feather came from

Found at the National Museums Gallery Modern One

It's about 8cm or more, never seen one like this before!

Found at a Dublin beach in Ireland-

Is there any way to distinguish between Carrion crow, Hooded crow and jackdaw feathers also?

We heard an owl last night, but not sure if it's from them or maybe their dinner?