Luiz Claudio Marigo / Spot backed puffbird {Nystalus maculatus} Caatina, Brazil

Oscar Dewhurst / Black-fronted nunbird (Monasa nigrifrons) feeding on katydid in rainforest clearing. Madre de Dios, Peru. April

Bernard Castelein / Black-fronted nunbird ( Monasa nigrifrons), Pampas del Yacuma Protected Area, Bolivia

Bernard Castelein / Black-fronted nunbird ( Monasa nigrifrons), Pampas del Yacuma Protected Area, Bolivia

Glenn Bartley/ BIA / Barred Puffbird (Nystalus radiatus), Andes, Colombia

Nick Hawkins / White-necked puffbird (Notharchus hyperrhynchus) perched on branch, Nicoya Peninsula, Costa Rica. January.

Sean Crane / White-whiskered Puffbird (Malacoptila panamensis), Soberania National Park, Panama

Konrad Wothe / Black-fronted nunbird (Monasa nigrifrons) drying its wings after a rain shower, Panguana Reserve, Huanuco Region, Peru.

Cyril Ruoso / White-whiskered puffbird (Malacoptila panamensis) tropical rainforest. Barro Colorado Island, Gatun Lake, Panama Canal, Panama.

Nick Garbutt / Barred Puffbird (Nystalus radiatus) perched in rainforest canopy, Rio Claro Reserve, Magdalena Valley, Colombia, South America.

Luiz Claudio Marigo / Black-fronted Nunbird (Monasa nigrifrons) Pantanal, Brazil.

Ben Cranke / Black-fronted Nunbird (Monasa nigrifrons) perched on a tree branch, Mato Grosso, Pantanal, Brazil. July.

Luiz Claudio Marigo / Black-fronted Nunbird (Monasa nigrifrons) perched on branch on the margin of Piquiri River Pantanal, Mato Grosso State, Western Brazil.

Glenn Bartley / White-whiskered Puffbird (Malacoptila panamensis), Costa Rica

Roland Seitre / White-whiskered Puffbird (Malacoptila panamensis). Gamboa, Panama city region, Canal rainforest, Panama.

Christian Ziegler / White-whiskered Puffbird (Malacoptila panamensis), Barro Colorado Island, Panama

Murray Cooper / Swallow-winged Puffbird (Chelidoptera tenebrosa), Ecuador

Murray Cooper / White-chested Puffbird (Malacoptila fusca), Ecuador

Christian Ziegler / White-whiskered Puffbird (Malacoptila panamensis), Pipeline Road, Panama Canal Zone, Soberania National Park, Panama

Christian Ziegler / White-whiskered Puffbird (Malacoptila panamensis) portrait, Barro Colorado Island, Panama

Pete Oxford / Spot-backed puffbird {Nystalus maculatus} Caatinga, Brazil.

Luiz Claudio Marigo / Rufous-necked puffbird {Malacoptila rufa} tropical rainforest, Brazil

Thomas Marent / Barred Puffbird (Nystalus radiatus), Rio Claro Nature Reserve, Colombia

Agustin Esmoris / White-eared Puffbird (Nystalus chacuru), Argentina

David Pattyn / Russet-throated Puffbird (Hypnelus ruficollis) perched on branch, Tayrona National Park, Magdalena, Colombia.

Glenn Bartley/ BIA / White-whiskered Puffbird (Malacoptila panamensis), Panama

David Pattyn / White-whiskered Puffbird (Malacoptila panamensis) with prey, probably a grasshopper Carara National Park, Costa Rica

Suzi Eszterhas / Black-fronted nunbird (Monasa nigrifrons) on a branch, Amazon, Brazil. June.