Phil Savoie / Purple-throated mountain gem (Lampornis calolaemus), Volcano Pos, Costa Rica.

Ingo Arndt / Purple throated mountain gem {Lampornis calolaema} male feeding at flower, Costa Rica

Bence Mate / White-throated mountain gem hummingbirds (Lampornis castaneoventris) fighting, Savegre, Costa Rica

Melvin Grey / White-throated mountain gem hummingbird (Lampornis castaneoventris) hummingbird male perched, Sevegre Valley, Costa Rica.

Melvin Grey / Purple-throated mountain gem hummingbird (Lampornis calolaemus) hummingbird adult female in flight, Atlantic Rainforest, Costa Rica.

Melvin Grey / Purple-throated mountain gem hummingbird (Lampornis calolaemus) hummingbird adult female on nest, Costa Rica.

Glenn Bartley / Variable Mountain-gem (Lampornis castaneoventris) female, Costa Rica

E.J. Peiker / Purple-throated Mountain-gem (Lampornis calolaemus) female feeding on nectar, Costa Rica

E.J. Peiker / Purple-throated Mountain-gem (Lampornis calolaemus) female, Costa Rica

E.J. Peiker / Purple-throated Mountain-gem (Lampornis calolaemus) female feeding on nectar at flower, Costa Rica

Bence Mate / Portrait of Purple-throated mountain-gem (Lampornis calolaema) perching on branch, Costa Rica

Bence Mate / Green crowned brilliant (Heliodoxa jacula) and Purple throated mountain-gem (Lampornis calolaema) perching on branch, Costa Rica,