The length of a male peacock is pretty close to the Homalocephale, but the weight of a peacock is 6 kg maximum. The weight of a Homalocephale is around 50 kg. That's a MASSIVE difference. That's the weight of a chimpanzee and don't tell me they are safe to have wandering around a zoo. They are viscious. Plus the Homalocephale are supposed to be headbutting animals, which would suggest they are territorial. Completely opposite of a peacock as they attract mates by beauty and not by force. Animals that fight for the right to mate are often pretty aggresive... Especially during mating seasons. Then you could argue, that they are all female, but a headbutt from one of those things can def still kill a kid.