Mary McDonald / Two Buff-tailed coronet (Boissonneaua flavescens) hummingbirds interacting, Andean montane forest, Ecuador. April.

Mary McDonald / Chestnut-breasted coronet (Boissonneaua matthewsii) male, Andean montane forest, Ecuador.

Melvin Grey / Buff-tailed coronet hummingbird (Boissonneaua flavescens) hummingbird adult male feeding on flower, Guango Lodge, Ecuador.

Rolf Nussbaumer / Sword-billed Hummingbird (Ensifera ensifera) male feeding from passionflower (Passiflora mixta), Papallacta, Ecuador, Andes, South America. January.

Guy Edwardes / Sword-billed Hummingbird (Ensifera ensifera) Guango Lodge, Ecuador

Roland Seitre / Sword-billed Hummingbird (Ensifera ensifera) in flight. Guango lodge, Cuyuja, Napo, Ecuador.