emergency?

1 year old Pekin duck, she eats Manna pro pellets with tomatoes and eggs as snacks. She eats corn too.

Anyone know what kind of bug this is.it almost looks like a weird tick. Found about 20 or so on one of my laying hens. All the hens (6) haven't laid a single egg in about 2-3 days. They seem completely healthy. Just held one of them and found this. Any help is appreciated!!