I currently introduced 2 new chickens to my 2 existing chickens, which didn't go as well as I had hoped!! My existing chickens didn't take to the new ones at all and pecked at the littlest one every chance they got. I ended up separating 2 sections in the coop so that they couldn't get to each other at night. However my existing chickens stay standing up all night is this normal? or is this some type of threatening behaviour? Does anyone know?