A flock of Red-winged Blackbirds erupts from a field in New Mexico's Bosque Del Apache National Wildlife Refuge. It is always amazing to me how they fly in perfect unison, instantly changing direction, with out colliding. Image made with Canon 7D mark2 and Tamron 150-600 SP lens at 300 mm focal length, ISO 800, 1/1600 sec. @ F 8.0.