This is a tough one. Have you picked one apart? Could they be bagworm larvae?
Is the feeder normally on the ground (as shown) or is it normally hanging?
The feeders are on the ground.
Everyday I fill them w seed in the morning and these grass balls are there, seed is gone.
It has been raining here, but I opened it up and appears just grass and seed shells....see pic...thanx
This is a tough ID. I asked several other wildlife biologists and here are some things I think they are not:
- scat of squirrels, flying squirrels, opossums, skunks, raccoons, or deer
- bagworms (since there were no larvae)
- owl pellets (no animal parts, too many in one place)
More here: https://wmrcp.blogspot.com/2012/02/mystery-pellet-at-bird-feeder.html
Thanx so much for your effort....no, no crows.....I searched again last night and I'm pretty sure it looks ,very similiar, to Marsh rabbit ,Hare,...see pic
I am going to put a camera up...thanks again
It's hard to tell the size from the photo, but rabbit scat are smaller than marbles, these seem bigger to me. The camera should help!