countryside

Stylized diagram of the development of a duck egg from being laid until after hatching Day 27 hatchling squashed inside egg ready to hatch, air cell still shows

Stylized diagram of the development of a duck egg from being laid until after hatching day five embryo separates from the yolk, blood vessel network grows and branchesm eye starts to get a colour.

Stylized diagram of the development of a duck egg from being laid until after hatching day eight blood vessels carry waste and oxygen, eyelids start to cover eye, beak and egg tooth more clear.

Stylized diagram of the development of a duck egg from being laid until after hatching duckling hatching half in half out of shell with prominent egg tooth

Buzzard Buteo buteo at rest on a branch

Canada goose Branta canadensis

Chaffinch Fringilla coelebs male in amongst grasses

Archeopteryx reconstruction

Archeopteryx skeleton

Barn owl Tyto alba peering out from barn rafters

Black Casqued Hornbill Ceratogymna atrata

Black headed gull Chroicocephalus ridibundus with winter and summer head plumage

Blackbird Turdus merula

Blue-tit Parus caeruleus male on a branch

Blue tit Parus caeruleus, Coal tit, Long tailed tit, and great tits in a Scots pine tree with cowslip and snakeshead fritillary growing underneath

Blue tit Parus caeruleus adult feeding chicks inside a bird box

Blue tit Parus caeruleus visiting a bird box

Bullfinch Pyrrhula pyrrhula male