Animals, Birds, A female Purple-throated Mountain-gem Hummingbird, Lamporis calolaemus, feeds on the nectar of a torpical Rubiaceae flower in Costa Rica.

Animals, Birds, A female Rufous-tailed Hummingbird, Amazilia tzacatl, sits on her nest in Tortuguero National Park in Costa Rica.

Animals, Birds, A female Rufous-tailed Hummingbird, Amazilia tzacatl, feeds one of her babies in her nest in Tortuguero National Park in Costa Rica.

Animals, Birds, A female Rufous-tailed Hummingbird, Amazilia tzacatl, on her nest in Tortuguero National Park in Costa Rica.

Animals, Birds, A female White-bellied Mountain-gem Hummingbird, Lampornis hemileucus, perches in a thicket of Porterweed in the cloud forest of Costa Rica.

Two young Khamba Tibetan women from the Kham region of eastern Tibet on a pilgrimage to visit holy sites in Lhasa, Tibet. One is wearing a western-style felt hat, which is very popular in the Kham re...

A Khamba Tibetan woman from the Kham region of eastern Tibet on a pilgrimage to the Jokhang Temple in Lhasa, Tibet. She is wearing a traditional heavy sheepskin-lined chupa or chuba coat and gangdian...

A Khamba Tibetan woman from the Kham region of eastern Tibet on a pilgrimage to visit holy sites in Lhasa, Tibet. She is wearing a traditional heavy sheepskin-lined chupa or chuba coat.

A young Tibetan girl wears a wig of Khamba-style braids and a red coral headdress in Barkhor Square in Lhasa, Tibet.

Tibetan Buddhist pilgrims from the Kham region of eastern Tibet circumambulating around the Jokhang Temple in Lhasa, Tibet. A Khamba man with his red headdress leads his family with a prayer wheel.

An older Tibetan woman pilgrim circumambulates the Jokhang Temple with her prayer wheel in Lhasa, Tibet. She is wearing her traditional colorful pangden or bangdian apron.

Tibetan Buddhist pilgrims from the Kham region of eastern Tibet circumambulating around the Jokhang Temple in Lhasa, Tibet. The man wears the traditional golden thread hat and the women wear their pa...