Florisuga mellivora (White-necked Jacobin) hovering, Soberania National Park, Republic of Panama, Central America

Chestnut-breasted coronet (Boissonneaua matthewsii) in flight, flying, rainforest, cloud forest, northern Ecuador, Ecuador, South America

Violet-capped woodnymph (Thalurania glaucopis) drinking at a flower, Atlantic Rainforest, State of Sao Paulo, Brazil, South America

Violet-capped woodnymph (Thalurania glaucopis) drinking nectar at a flower, Atlantic Rainforest, State of Sao Paulo, Brazil, South America

Dandruff imitation (Phaethornis eurynome) drinking at a flower, Atlantic Rainforest, State of Sao Paulo, Brazil, South America

Purple-throated woodstar (Calliphlox mitchellii), female with pink flower, flying, rainforest, cloud forest, northwestern Ecuador, Ecuador, South America

Bronzy Inca (Coeligena coeligena) on red blossom, flying, rainforest, cloud forest, northern Ecuador, Ecuador, South America

Stripe-throated Hermit foraging in flight-Costa Rica

Hummingbird hawk-moth in flight, Spain

White-necked Jacobin female foraging in flight, Costa Rica

Green-breasted mango female foraging in flight, Costa Rica

Green-breasted mango female foraging in flight, Costa Rica

Green-breasted mango male foraging in flight, Costa Rica

White-necked Jacobin foraging in flight, Costa Rica

Green crowned Brilliant female foraging in flight-Costa Rica

White-necked Jacobin female foraging in flight, Costa Rica

White-necked Jacobin male foraging in flight, Costa Rica

Researcher catching Rufous-tailed Hummingbird (Amazilia Tzacatl) in a net set up for pollination study, rainforest at "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

Researchers picking up pollen with a brush from the beak of a hummingbird Stripe-throated Hermit as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

Researchers picking up pollen with a brush from the beak of a Rufous-tailed hummingbird as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui , Costa Rica

Researcher measuring a 2.6 gram Stripe-throated Hermit hummingbird wing as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

Researcher photographing a 2.6 gram Stripe-throated Hermit hummingbird as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

Green-breasted mango male foraging in flight, Costa Rica

Rufous-tailed Hummingbird (Amazilia tzacatl) in a net set up by a researcher as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

Green-breasted mango male foraging in flight, Costa Rica

Sword-billed Hummingbird (Ensifera ensifera), female, confronting a Buff-tailed Coronot (Boissonneaua flavescens), Colombia

Researcher measuring the beak of a Rufous-tailed hummingbird as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica

Researchers picking up pollen using tape on the beak of a Rufous-tailed hummingbird as part of a pollination study, rainforest at the "La Selva" research station in Puerto Viejo de Sarapiqui, Costa Rica