Tui De Roy / White bellied woodstar (Chaetocercus mulsant) three hovering around red flowers, Guango private reserve, Papallacta Valley, Andean Cloud Forest, East slope, Ecuador

Ingo Arndt / White-bellied woodstar (Chaetocercus mulsant) and Booted racket-tail (Ocreatus underwoodii) female. Hummingbirds necaring on flower. Western slope of Andes, Ecuador. October.

Ingo Arndt / White-bellied woodstar (Chaetocercus mulsant) hummingbird nectaring on flower. Ecuador. October.

Ingo Arndt / White-bellied woodstar (Chaetocercus mulsant) hummingbird nectaring on Banana (Musa sp) flower. Western slope of Andes, Ecuador. October.

Glenn Bartley / White-bellied Woodstar (Chaetocercus mulsant), Ecuador

Tui De Roy / White bellied woodstar (Chaetocercus mulsant) in flight, Guango private reserve, Papallacta Valley, Andean Cloud Forest, East slope, Ecuador

Tui De Roy / White bellied woodstar (Chaetocercus mulsant) in flight, Guango private reserve, Papallacta Valley, Andean Cloud Forest, East slope, Ecuador

Tui De Roy / White bellied woodstar (Chaetocercus mulsant) in flight, Guango private reserve, Papallacta Valley, Andean Cloud Forest, Ecuador

Tui De Roy / White bellied woodstar (Chaetocercus mulsant) Tandayapa Valley, 1500m altitude, Andean cloud forest, Ecuador

Tim Fitzharris / White-bellied Woodstar (Acestrura mulsant) hummingbird male and female feeding on flower, Costa Rica

Rolf Nussbaumer / White-bellied Woodstar (Chaetocercus mulsant), female feeding on Bomarea flower, Papallacta, Ecuador, Andes, South America, January

Tom Vezo / White-bellied Woodstar (Acestrura mulsant) hummingbird hovering near flower, Andes, Ecuador

Pete Oxford / White-bellied Woodstar (Chaetocercus mulsant) hummingbird resting on leaf, Mindo cloud forest, Ecuador

Ingo Arndt / White-bellied Woodstar (Chaetocercus mulsant) and Fawn-breasted Brilliant (Heliodoxa rubinoides) hummingbirds feeding on flower nectar, Andes western slope, Ecuador

Konrad Wothe / White-bellied Woodstar (Chaetocercus mulsant) male flying, Ecuador

Murray Cooper / White-bellied Woodstar (Chaetocercus mulsant) hummingbird female feeding on flower nectar, Andes, Ecuador

Tom Vezo / White-bellied Woodstar (Chaetocercus mulsant) hummingbird feeding on flower nectar

Bruce Thomson / White-bellied woodstar (Chaetocercus mulsant) females and Sparkling violetear (Colibri coruscans) drinking nectar from a flower, Ecuador.

Bruce Thomson / White-bellied woodstar (Chaetocercus mulsant) female drinking nectar from a flower. A male White-bellied woodstar is hovering nearby. Ecuador.

Maxime Aliaga / White-bellied woodstar hummingbird (Chaetocercus mulsant), male, in flight. Sacred Valley, Peru.

Andy Rouse / White bellied woodstar hummingbird (Chaetocercus mulsant) hovering, portrait, cloud forest, Ecuador.

Andy Rouse / White bellied woodstar hummingbird (Chaetocercus mulsant) and Sword-billed hummingbird (Ensifera ensifera) hovering next to flower, feeding on nectar, cloud forest, Ecuador.

Andy Rouse / White bellied woodstar hummingbird (Chaetocercus mulsant) hovering next to flower, feeding on nectar, cloud forest, Ecuador.