Yes. Who doesn't?
Most animals will happily eat meat/insects with the slightest provocation. New mothers eat the placenta, after all. Also, the concept of feeding chickens a vegetarian diet is a new one, brought on by fears of mad cow disease, yet chickens are insanely cannibalistic, even to the point of eating feathers off each other until someone bleeds, then they'll keep picking at the wound until someone dies. That's why they debeak the birds in the factory egg farms.
The birds in the meat farms, however, are too lazy to eat each other.
Want an egg McMuffin now?