Costa Rica: Hummingbirds in flight 1/3 Yves RoumazeillesApril 14, 2015April 3, 2015 You should have no difficulty recognizing this bird from its name: Rufous-tailed Hummingbird. Rufous-tailed Hummingbird (Amazilia tzacatl, Ariane à ventre gris). Costa Rica, 2015.