Trắc nghiệm: With respect to maneuverability. few birds can equal the capabilities of the hummingbird. which hovers for long periods and even flies backward,With respect to maneuverability. few birds can equal the capabilities of the hummingbird. which hovers for long periods and even flies backward,With respect to maneuverability. few birds can equal the capabilities of the hummingbird. which hovers for long periods and even flies backward