Drake Northern Pintails (Anas acuta) Engaged in Territorial Dispute, NM, Anas acuta, Bosque, Bosque del Apache National WIldlife Refuge, Bosque del Apache NWR, breeding plumage, dominance fight, drakes, fighting, males, New Mexico, NM, Northern Pintails, Northern Pintails (Anas acuta), Pintails, quarreling, San Antonio NM, territorial dispute