Pete Oxford / Sapphire-vented Puffleg (Eriocnemis luciani) hummingbird, Yanacocha Reserve, Pichincha Volcano, Ecuador

Pete Oxford / Masked Flower-piercer (Diglossa cyanea), Yanacocha Reserve, Pichincha Volcano, Ecuador

Pete Oxford / Masked Flower-piercer (Diglossa cyanea), Yanacocha Reserve, Pichincha Volcano, Ecuador

Pete Oxford / Great Sapphirewing (Pterophanes cyanopterus) hummingbird, Yanacocha Reserve, Pichincha Volcano, Ecuador

Tui De Roy / Sword-billed Hummingbird (Ensifera ensifera) flying, Yanacocha Reserve, Andes, Ecuador

Tui De Roy / Glossy Flower-piercer (Diglossa lafresnayii), Yanacocha Reserve, Andes, Ecuador

Nick Garbutt / Sword-billed Hummingbird (Ensifera ensifera) feeding at an Angel's or Devil's Trumpet Flower (Datura sp.). Yanacocha montane cloud forest, Ecuador.

Tui De Roy / Tyrian metaltail (Metallura tyrianthina) profile, Yanacocha Reserve, Jocotoco Foundation, 3,200m altitude on west slope of Pichincha Volcano, Andean cloud forest, Ecuador

Tui De Roy / Sword billed hummingbird (Ensifera ensifera) showing how it uses its long beak to feed on specific flowers, Yanacocha Reserve, Jocotoco Foundation, 3,200m altitude on west slope of Pichincha Volcano,...

Tui De Roy / Sword billed hummingbird (Ensifera ensifera) profile showing beak is longer than body, Yanacocha Reserve, Jocotoco Foundation, 3,200m altitude on west slope of Pichincha Volcano, Andean cloud forest,...

Tui De Roy / Sword billed hummingbird (Ensifera ensifera) profile showing beak is longer than body, Yanacocha Reserve, Jocotoco Foundation, 3,200m altitude on west slope of Pichincha Volcano, Andean cloud forest,...

Tui De Roy / Sword billed hummingbird (Ensifera ensifera) profile showing beak is longer than body, Yanacocha Reserve, Jocotoco Foundation, 3,200m altitude on west slope of Pichincha Volcano, Andean cloud forest,...