Staffan Widstrand / RF- Jaguar head profle portrait (Panthera onca) head portrait captive. Pantanal, Brazil. (This image may be licensed either as rights managed or royalty free.)

Rolf Nussbaumer / RF- Wild turkey males displaying (Meleagris gallopavo). Texas, USA. (This image may be licensed either as rights managed or royalty free.)

George McCarthy / RF- Tawny owl with moon behind (Strix aluco), UK. (This image may be licensed either as rights managed or royalty free.)

Alex Hyde / RF - Scarlet macaw (Ara macao) pair preening, Osa Peninsula, Costa Rica. (This image may be licensed either as rights managed or royalty free.)

Alex Hyde / RF - Close up of feathers of a Scarlet Macaw (Ara macao) Osa Peninsula, Costa Rica. (This image may be licensed either as rights managed or royalty free.)

Staffan Widstrand / RF- Walrus (Odobenus rosmaris) close up head portrait, Svalbard, Norway. (This image may be licensed either as rights managed or royalty free.)

Rolf Nussbaumer / RF- Western Diamondback Rattlesnake (Crotalus atrox), adult in striking pose with rattle raised, in wildflowers. Laredo, Webb County, South Texas, USA. April. (This image may be licensed either as rig...

Edwin Giesbers / RF- Konik Wild Horse (Equus ferus caballus) low angle close up of head. The Netherlands. July. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- Grey Heron (Ardea cinerea) taking off from reeds. The Netherlands. June. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- Whooper Swan (Cygnus cygnus) in profile, calling. The Netherlands. June. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- Jaguar (Panthera onca) head portrait, captive. (This image may be licensed either as rights managed or royalty free.)

Edwin Giesbers / RF- African Lion (Panthera leo) head portrait of male roaring, captive. (This image may be licensed either as rights managed or royalty free.)