endothermic

Snipe Gallinago gallinago looking over its shoulder

Ring ouzel Turdus torquatus perched on a branch looking surly

Snipe Gallinago gallinago on the ground, cut to white

Robin Erithacus rubecula with a worm in its beak returning to an open fronted nest box attached to the trunk of a tree with a blue sky behind

Sparrowhawk Accipiter nisus perched on top of a post with moss at its feet

Robin Erithacus rubecula staring at the viewer with slightly ruffled feathers and a large eye, perched on an ash twig

Stonechat Saxicola rubicola male singing with open beak and perched in some flowering gorse Ulex

Robin Erithacus rubecula splahsing in a white neoclassical style pedestal bird bath with water droplets spraying around, plumage fluffed out, and a grassy lawn behind

Swift Apus apus sketch in flight

Rooks Corvus frugilegus perched on their nests in a rookery with distanct rooks behind in flight

Ruby throated Hummingbird Archilochus colubris in flight, feedin with tis long beak from a pink convolvulus like flower and showing its bright green featehrs and scarlet thoat patch

Saqr falcon with eye shades and tresses, ready for falconry hunting and perched on ceremonial Arabian perch

Sanderling Calidris alba standing in a rockpool with seaweed covered stones on a beach with lots of other wading birds behind and distant sea view of a rocky coast

Puffin Fratercula arctica standing on tufts of grass facing left

Raven Corvus corax cut to white

Red grouse Lagopus lagopus

Red grouse Lagopus lagopus cut to white

Moorhen Gallinula chloropus swimming cut to white

Red grouse Lagopus lagopus standing on limestone boulder with a pale upland morr landscape behind, small vignette

Mute swan Cygnus olor standing on one grey leg and clearly showing its orange beak

Red kite Milvus milvus in flight from below showing its distinctive v shaped tail

Nightjar Caprimulgus europaeus settled camoflauged on the ground in amongst a background of birch, vetch and grasses

Red throated Diver Gavia stellata looking alert with red throat on show, showing striped head and sharp beak

Northern shoveler Spatula clypeata duck pair on water