Tenzin Alex: Royal flycacther, Onychorhynchus (coronatus) mexicanus head details of male and female
Tenzin Alex: Flavescent Flycatcher, Myiophobus flavicans, crown detail showing variation in crest colouration
Tenzin Alex: Modified 9th primary in Pachyramphus male
Tenzin Alex: Relief map of colombian andes
Tenzin Alex: Primate specimen, hand detail
Tenzin Alex: Scarlet Macaw specimens, Ara macao
Tenzin Alex: Bat specimens
Tenzin Alex: Plumage detail, Scarlet Macaw, Ara macao
Tenzin Alex: Plumage detail, Blue-and-yellow Macaw, Ara araruana
Tenzin Alex: Bill of Harpy Eagle, Harpia harpyja
Tenzin Alex: Talons of Harpy Eagle, Harpia harpyja
Tenzin Alex: Crimson-backed Tanager, Ramphocelus dimidiatus specimens
Tenzin Alex: Beryl-spangled Tanager, Tangara nigroviridis
Tenzin Alex: Instituto Alexander von Humboldt
Tenzin Alex: Main chapel roof detail, Instituto Alexander von Humboldt
Tenzin Alex: Pompadour Cotinga, Xipholena punicea, specimens
Tenzin Alex: Emerald Toucanet, Aulacorhynchus prasinus specimens
Tenzin Alex: Grey-breasted Mountain Toucan, Andigena hypoleuca specimens
Tenzin Alex: Olivaceous Piha, Snowornis cryptolophus specimens
Tenzin Alex: Central courtyard, Instituto Alexander von Humboldt
Tenzin Alex: Instituto Alexander von Humboldt
Tenzin Alex: Grass-green Tanager, Chlorornis reifferi specimens
Tenzin Alex: Green-crowned Woodnymph, Thalurania fannyi specimens
Tenzin Alex: Montane woodcreeper, Lepidocolaptes lacrymiger specimens
Tenzin Alex: Golden-headed Quetzal, Pharomachrus auriceps male plumage detail
Tenzin Alex: Golden-headed Quetzal, Pharomachrus auriceps female plumage detail
Tenzin Alex: Ivory-billed aracari, Pteroglossus azara specimens
Tenzin Alex: Andean Cok of the Rock specimens, Rupicola peruvianus
Tenzin Alex: furnarid bill diversity
Tenzin Alex: Plum-throated Cotinga, Cotinga maynana specimen, Cotinga maynana