Rufus-crowned roller (purple roller) (Coracias naevia), Kruger National Park, South Africa, Africa

Crowned Woodnymph (Thalurania colombica) a species of Hummingbird at Arenal Volcano National Park, Alajuela Province, Costa Rica, Central America

Yellow Crowned Night Heron (Nyctanassa Violacea), wading bird of the Americas that feeds on crustacea, Bermuda, Atlantic

A blue-crowned trogon (Trogon curucui) on a tree, Mato Grosso, Brazil, South America

Trinidad Motmot, aka blue-crowned motmot; Arnos Vale region of Tobago island, Trinidad and Tobago.

Trinidad Motmot, aka blue-crowned motmot; Arnos Vale region of Tobago island, Trinidad and Tobago.

Red-Crowned Crane herd

Blue-Crowned Parakeet, (Thectocercus acuticaudatus), Sun Conure, (Aratinga solstitialis), adult on branch, South America

Blue-crowned Motmot (Momotus momota), Tobago, Trinidad and Tobago, Caribbean

Black-crowned night heron (Nycticorax nycticorax) walking in shallow water, Carcass Island, Falkland Islands

Northern white-crowned shrike (Eurocephalus ruppelli) with catchlight in thornbush, Serengeti, Tanzania

Green Honeycreeper (Chlorophanes spiza) confronting a Saffron-crowned Tanager (Tangara xanthocephala), Colombia

Portrait of Victoria Crowned Pigeon, Bali Indonesia