Chiles come in all degrees of hotness. Some we eat whole (like bell peppers) and others we use just for flavorings (like jalepenos). Sometimes we eat a meal full of chiles because we enjoy spiciness. But are there other animals who also eat chiles? I’ve never seen it other than maybe a rabbit eating a bell pepper. Are there animals that eat the really hot peppers like jalepenos, serranos, thai peppers, etc?
Birds eat them. They’re not affected by the heat.
See my Staff Report (my first one actually, as a Guest Contributor):
Are birds immune to hot pepper, enabling them to eat vast amounts and spread the seeds?
In short, chilies are hot to prevent them from being eaten by mammals. Birds are immune to them, and spread the seeds.
Green or sweet peppers have been bred to lack the hot element and are edible to mammals.
Colibri/George
SD Science Advisory Board
Are you sure about that? I saw an especially hot jalapeno fed to a crow once, and the crow did an interesting thing within a couple of seconds - it shuddered all over, hunched down, fluffed its feathers, then took off cawing madly the whole time. 
With proper exposure eventially you can too!
I’ve heard of hot sauce being used as an additive to birdseed to keep squirrels from eating it. I have no idea how well it works, though.
My crazy dog doesn’t eat them per se, but he sure chews them up real good. He gets into our habanero plant and picks peppers and chews them up.
After the first one, I expected that he wouldn’t do it again, but he did.
We had to move the plant out of his reach.
Hmm… so it was wrong for me to snicker malevolently when I watched the neighborhood crows eat a bag of Flamin’ Hot Cheetos someone dropped and imagined the cloacal torture they would soon be experiencing?
Damn.
A couple of years ago, we planted a bunch of pepper plants in the hopes of growing peppers for home-made salsa. I don’t know what it was, but some critter in the neighborhood really enjoyed helping themselves to them.
JOhn.
Gophers love em too… at least at the root level. 
Folklore says that hot peppers are fed to guard dogs and fighting dogs, to make them mean. I suspect it’s not true. It doesn’t work for humans. Hot sauce is often recommended as a repellent to keep pets from chewing wires and furniture legs. It usually works, but there’s the occasional Cajun Terrier or Thai cat that loves it.
I had a problem with these little tiny spec size ants in my sink. I know, gross, but here’s the deal. After a Mexican meal, I had a few peppers left over, and they stayed in the sink drain. No more ants, seems at least this type of ant doesn’t care for hot peppers.
My dog has eaten jalapeños on several occasions, of his own volition.
Squirrel Proof Wild Bird Seed is one example. I believe they usually use either a chili powder or a capsaicin additive, rather than hot sauce per se.
From Colibri’s article:
Interesting. Is there some advantage to the grape to attract mammals while being repulsive to birds?
I can say from first-hand observation that chickens don’t mind jalapeno seeds at all.
Actually, this strikes me as a bit odd, since I’m having trouble imaging specific reasons why grapes would “prefer” mammals (perhaps squirrels, in this case) to birds as dispersers of their seeds.
The chemical apparently varies between grape species and varieties, however, being found mostly in “Concord grape” (deep purple) types. Not all grapes have it.
The chemical is widely used as a chemical deterrant for birds, in particular being used to keep Canada Geese off golf courses and lawns.