You want to find out if it is a snake?
Here you go.
Take an egg and very carefully drill a tiny hole in the top, one that is just large enough to put a good size catfish hook in it. Now take a catfish hook and tie it to a good stout 20lb test fishing line and leave about 15 foot hanging off. Feed the hook, eyelet and all, into the egg superglue the top shut. Now take it back to the coop and put it in the nest. Now take the other end of the string and tie it off somewhere that isn't noticed and is good and stout and won't come untied (I like a texas rigging knot). now cover up all the loose line so it can't be seen or get tangled in by your birds.
Be prepared when you go back to the coop as you might have caught a snake and there is a good chance he might still be alive but hooked. I always just took a shovel with me until the job was completed.
Good Luck!
Here you go.
Take an egg and very carefully drill a tiny hole in the top, one that is just large enough to put a good size catfish hook in it. Now take a catfish hook and tie it to a good stout 20lb test fishing line and leave about 15 foot hanging off. Feed the hook, eyelet and all, into the egg superglue the top shut. Now take it back to the coop and put it in the nest. Now take the other end of the string and tie it off somewhere that isn't noticed and is good and stout and won't come untied (I like a texas rigging knot). now cover up all the loose line so it can't be seen or get tangled in by your birds.
Be prepared when you go back to the coop as you might have caught a snake and there is a good chance he might still be alive but hooked. I always just took a shovel with me until the job was completed.
Good Luck!