Rolf Nussbaumer / RF- Red Admiral butterfly (Vanessa atalanta) perched on Bigtooth Maple (Acer grandidentatum). Lost Maples State Park, Hill Country, Central Texas, USA. November. (This image may be licensed either as...

Ross Hoddinott / 2020VISION / RF- Contorted trunks of Beech trees (Fagus sylvatica) in autumn mist. Beacon Hill Country Park, National Forest, Leicestershire, UK. October 2010. (This image may be licensed either as rights managed...

Ross Hoddinott / RF- Maple (Acer sp.) leaves showing red and gold autumn colours. Westonbirt Arboretum, Gloucestershire, UK. October.

Rolf Nussbaumer / RF- Northern Cardinal (Cardinalis cardinalis) immature male perched on Texas Red Oak (Quercus Texana). New Braunfels, San Antonio, Hill Country, Central Texas, USA. (This image may be licensed either...

Wild Wonders of Europe / Widstrand / RF- Kitkajoki river, Oulanka, Finland. September 2008 (This image may be licensed either as rights managed or royalty free.)

Staffan Widstrand / RF- Caribou herd (Rangifer tarandus) grazing on tundra. Kobuk Valley National Park, Alaska, USA. (This image may be licensed either as rights managed or royalty free.)

Kim Taylor / RF- Tawny owl (Strix aluco) taking off. Captive UK. (This image may be licensed either as rights managed or royalty free.)

Lynn M Stone / RF- Head portrait of Grey wolf,(Canis lupus), in woodland. Minnesota, USA. (This image may be licensed either as rights managed or royalty free.)

Lynn M Stone / RF- Reindeer (Rangifer tarandus) feeding. Denali National Park, Alaska, USA. (This image may be licensed either as rights managed or royalty free.)