Sounds like it. I had an attack on Saturday evening. I found my coop door open (my daughter forgot to shut it for me when I was out of town :-( ) and 2 younger pullets were dead and a cockerel were missing, and two of my laying hens were dead. The surviving 8 birds all have wounds of some sort on them. They are all locked up securely and I am doctoring them and feeding them. Some are less traumatized than others, so they are still laying. 4 others are not at the moment. I think it was a dog or a raccoon. Whatever went after them did so without being picky about what they attacked or took. Only one bird totally missing - the young cockerel. Sigh. I'd like to throttle my daughter, but she feels bad enough as it is.