Lucas Bustamante / Green-crowned woodnymph (Thalaurania fannyi) Mashpi, Pichincha, Ecuador

Melvin Grey / Green-crowned woodnymph (Thalurania fannyi) adult male sitting on thin branch, Milpe, Ecuador

Melvin Grey / Green-crowned woodnymph hummingbird (Thalurania fannyi) hummingbird adult female perched, Milpe, Ecuador.

Melvin Grey / Green-crowned woodnymph hummingbird (Thalurania fannyi) hummingbird adult male perched, Milpe, Ecuador.

Glenn Bartley / Green-crowned Woodnymph (Thalurania fannyi) male, Ecuador

Glenn Bartley / Green-crowned Woodnymph (Thalurania fannyi), Ecuador

Glenn Bartley / Green-crowned Woodnymph (Thalurania fannyi) female feeding on nectar, Ecuador

Glenn Bartley / Green-crowned Woodnymph (Thalurania fannyi), Ecuador

Glenn Bartley / Green-crowned Woodnymph (Thalurania fannyi), Ecuador

Roland Seitre / Violet-crowned Woodnymph (Thalurania colombica) male, Costa Rica

Tim Fitzharris / Green-crowned Woodnymph (Thalurania fannyi) female landing, Ecuador

Roland Seitre / Blue-crowned Woodnymph Hummingbird (Thalurania colombica) perched, Mazu Rancho Ecological ranch ,Chiriqui Grande, Bocas del Toro, Panama.

Roland Seitre / Blue-crowned Woodnymph Hummingbird (Thalurania colombica) alighting on twig. Mazu Rancho Ecological ranch ,Chiriqui Grande, Bocas del Toro, Panama.

Roland Seitre / Blue-crowned Woodnymph Hummingbird (Thalurania colombica). Rancho Naturalista, Turrialba, Costa Rica.

Pete Oxford / Green-crowned Woodnymph hummingbird (Thalurania fannyi). Mindo cloud forest, Ecuador.

Pete Oxford / Green-crowned Woodnymph (Thalurania fannyi) hummingbird, Mindo Cloud Forest, western slope of Andes, Ecuador

Rolf Nussbaumer / Green-Crowned Woodnymph (Thalurania fannyi), male feeding on flower, Mindo, Ecuador, Andes, South America, February

Rolf Nussbaumer / Booted Racket-tail (Ocreatus underwoodii), Green-Crowned Woodnymph (Thalurania fannyi) and Brown Inca (Coeligena wilsoni) adults feeding on Ginger flower, Mindo, Ecuador, Andes, South America, Februar...

Rolf Nussbaumer / Green-Crowned Woodnymph (Thalurania fannyi) male perched, Mindo, Ecuador, Andes, South America, February

Rolf Nussbaumer / Green-Crowned Woodnymph (Thalurania fannyi) male perched, Mindo, Ecuador, Andes, South America, February

Rolf Nussbaumer / Booted Racket-tail (Ocreatus underwoodii) and Green-Crowned Woodnymph (Thalurania fannyi) adults feeding on flower, Mindo, Ecuador, Andes, South America, February

Rolf Nussbaumer / Green-Crowned Woodnymph (Thalurania fannyi) male feeding on flower, Mindo, Ecuador, Andes, South America, February

Rolf Nussbaumer / Green-Crowned Woodnymph (Thalurania fannyi) male feeding on flower in rain, Mindo, Ecuador, Andes, South America, February

Rolf Nussbaumer / Green-Crowned Woodnymph (Thalurania fannyi) male feeding on flower, Mindo, Ecuador, Andes, South America, February

Nick Garbutt / Green-crowned Woodnymph (Hummingbird)(Thalurania fannyi). Mindo, Ecuador.

Michael & Patricia Fogden / Violet-crowned Woodnymph (Thalurania colombica) hummingbird male perched in lowland rainforest, Costa Rica

Tui De Roy / Green-crowned Woodnymph (Thalurania fannyi) hummingbird male feeding from feeder, western Andes cloud forest, Maquipucuna Reserve, Ecuador

Murray Cooper / Green-crowned Woodnymph (Thalurania fannyi) hummingbird, Choco Rainforest, Ecuador

Guy Edwardes / Green-crowned Woodnymph (Thalurania fannyi) perched, Mirador Rio Blanco, Ecuador

Michael & Patricia Fogden / Green-crowned Woodnymph (Thalurania fannyi) hummingbird male, Milpe Bird Sanctuary, western slope of Andes, Ecuador

Maxime Aliaga / Violet-capped woodnymph (Thalurania glaucopis) and Brazilian ruby (Clytolaema rubricauda) hummingbirds feeding on flower in Atlantic rainforest, Brazil. Composite image.

Maxime Aliaga / Violet-capped woodnymph hummingbird (Thalurania glaucopis) male, feeding on flower in Atlantic rainforest, Brazil.

Maxime Aliaga / Violet-capped woodnymph (Thalurania glaucopis) and Brazilian ruby (Clytolaema rubricauda) hummingbirds feeding on flower in Atlantic rainforest, Brazil. Composite image.

Wim van den Heever / Violet-capped woodnymph hummingbird (Thalurania glaucopis) in flight, Atlantic Rainforest, Sao Paulo, Brazil.

Roman Willi / Crowned woodnymph (Thalurania colombica) male, perched on flower, Osa Peninsula, Costa Rica.

Maxime Aliaga / Violet-capped woodnymph (Thalurania glaucopis) perched, Iguazu National Park, Argentina