endothermic

Mallard duck Anas platyrhynchos duckling, quick pencil sketch showing spiky fluffy feathers

Kestrel Falco tinnunculus hovering in flight, focusing on the land beneath

Marabou stork Leptoptilos crumenifer with large beak and white neck feathers, and lots of exposed blueish pink skin on the head and loose fleshy wattles under the neck

Kingfisher Alcedo atthis sketch of bird in flight

Marsh tit Poecile palustris and Willow tit Poecile montanus illustrations next to each other for easy comparison of these similar species

Goshawk Accipiter gentilis looking fierce cut to white

Great crested grebe Podiceps cristatus male with erect crest

Great spotted woodpecker Dendrocopos major on side of a tree, ready to drill for insects

Great Tit Parus major on a tree branch with grasses behind

Greater flamingo Phoenicopterus roseus standing on one leg cut to white

Green woodpecker Picus viridis perched on a tree trunk

Grey heron Ardea cinerea quick sketch, standing on one leg in a river

Grey heron Ardea cinerea wading ankle deep in a river with reeds behind

Grey partridge Perdix perdix cut to white with one foot raised

Dipper eating aquatic invertebrate

Grey wagtail Motacilla cinerea breeding male stood on a mossy stone in a stream

Group of domestic ducks and geese including the Muscovy duck

Hen Gallus gallus domesticus egg sitting in a green field with meadow flowers and butterflies, used for packaging

Edier duck Somateria mollissima pair with chicks in rainy coastal scene male swimming

Herring gull Larus argentatus eating a chip from the road in a seaside urban setting

Goldcrest Regulus regulus upside down on some dried twigs showing the yellow head crest clearly

House martin Delichon urbicum coming to feed chicks in a nest under the eaves of a roof, small vignette

Golden eagle Aquila chrysaetos

Goldfinch Carduelis carduelis pair perched on teasels