Help! I put my 3 week old chicks in the coop last night, they're in a play yard inside the coop to givem' more room... anyway, pablo, our smallest chick was attackin whoever he could catch! He was grabbin' them by the bck of the neck! It was aweful! He (I think its a she..) attacked the much larger male BO & the female one too, And also our RIR hen, and the mottled jap banties? I grabbed him (or her) out of their before he killed someone! i think I calmed him down, I puthim back in about 1 min. later and he (or she) seemed calmer... Why is he doing this all of a sudden? & what should I do if anything?