Any ideas on what killed my hen?

[keesmom]

Since the attack happened in the afternoon, it probably wasn't a varmint...I'm thinking a dog attack. Pearl, my rooster who is still missing, got attacked by my neighbors dog and it tore off all his butt feathers and bit his legs...sounds very similar to your incident. I would ask neighbors about their dogs as well as keep an eye out for strays!

It could be a dog. However I have had fox and coyote attacks during the day this time of year when there are young to feed. Two years ago I had coyote wipe out a flock of 15 at noon.

Do you have a game camera?