I have a beautiful male Pekin named Howard. Howard's attitude towards my other animals has changed drastically in the last two weeks. Once my female began laying eggs, Howard has become extremely aggressive towards my Boston terrier and my three chickens. Is this normal? Growing up my little flock would follow my dog and even lay with her. The others still treat her as one of them but this little guy... He now consistently attacks the dog and grabs the chickens by their necks and wings and doesn't let go. I am not sure what to do nor know if this is normal behavior. When I was young I had a lone male Pekin who was very docile with humans and animals. Is this aggression solely due to my female now laying? What can I do?