John Shaw / Cheetah (Acinonyx jubatus) stretches on a downed tree. Zimbabwe. September.

Jen Guyton / Dirt road stretches across a desolate landscape in the Namib Desert, Namibia. January 2015

Peter Cairns / Black Guillemot (Cepphus grylle) stretching wings on rock, Flatey Island, Iceland, June.

Adrian Davies / Shag (Phalacrocorax aristotelis) drying wings on cliffs above the ocean, Mousa, Shetland, Scotland, May.

Dave Watts / Anhinga (Anhinga anhinga) drying wings, Victoria, Australia

Fergus Gill / Guillemot (Uria aalge) stretching its wings. Fowlsheugh, Scotland, June.

Fergus Gill / Razorbill (Alca torda) stretching its wings. Fowlsheugh, Scotland, June.

Fergus Gill / Bridled Guillemot (Uria aalge) calling whilst stretching its wings. Fowlsheugh, Scotland, June.

Fergus Gill / Bridled Guillemot (Uria aalge) stretching its wings. Fowlsheugh, Scotland, June.

Fergus Gill / Razorbill (Alca torda) stretching its wings. Fowlsheugh, Scotland, June.

Roger Powell / Little owl (Athene noctua) perched on a fence post in the rain, Castro Verde, Alentejo, Portugal, April.

Roger Powell / Little owl (Athene noctua) perched on a fence post, standing on one leg and stretching its wing, Castro Verde, Alentejo, Portugal, April.