So, I have been enjoying my wonderful flock of 4 Golden Comets and 1 EE for the past few weeks by sitting outside in the evening with a good book and a glass of wine. (heaven huh?) Recently, I've noticed very territorial behavior, especially out of my EE, towards sparrows. Because of BYC, I have learned that this isn't unusual. However it is the DEGREE of aggression they show sparrows that is freaking me out recently. In the past 3 weeks, I've noticed 3 dead birds in the yard (this has never happened before and I've lived in my home for years). Two were sparrows, and one robin. One of the sparrows was carefully stipped of anything edible, but it's skeleton and feathers were completely intact (so not a cat or dog kill). On Saturday, while I was sitting outside and enjoying my chickens, I actually saw them mob a sparrow fledgeling that had the misfortune of trying to learn to fly in my yard. They clearly had murderous intent, but I was able to save the thing and put it in a box until it recovered enough from being pecked on it's little head. My quesiton is: does this sound like normal chicken behavior to you, or do you think I have unusually dinosaur-like chickens?