Black-crowned Night Heron (Nycticorax nycticorax)Black-crowned Night Heron (Nycticorax nycticorax)Black-crowned Night-Heron (Nycticorax nycticorax)Black-crowned Night Heron (Nycticorax nycticorax) juvenileBlack-crowned Night-Heron (Nycticorax nycticorax)Black-crowned Night Heron (Nycticorax nycticorax) immature