LSM,I was not flying, the FO was and his decisions I agreed with. We were at 500 ft and we went opposite our clearance to miss him and the bird turned with us, we reversed to our clearance and the bird turned back, the FO said they always dive and I agreed, he didn't so we did all we could and that is my only airline bird strike. We did everything we could to avoid it but the bird commited suicide.