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Environment

First evidence birds nap in flight without dropping out of sky

Brain recorders fitted to 14 great frigatebirds show these birds sleep on the wing, usually while circling in rising air currents

A flock of seagulls hovers over a landfill site

Environment

Detective gulls sniff out illegally dumped trash from the skies

A crow stands on a branch holding a twig in its beak

Environment

Crows are first animals spotted using tools to carry objects

Two cranes in wetland with chick in the middle

Environment

Whooping crane recovery puts human chick ‘parents’ out of a job

White storks feeding on landfill site

Environment

Storks dine out on giant landfill sites instead of migrating

hummingbird

Environment

Hummingbirds鈥� unique way of seeing prevents them from crashing

Environment

Starving bald eagle chicks hint at ecosystem collapse in Florida

giant frigatebird on the wing

Environment

Roller-coasting birds soar for months and may snooze while aloft

A round, smooth lump of amber in which a fossilised wing can be seen

Environment

Beautifully preserved feathers belonged to tiny flying dinosaurs

Two budgies sit on a branch facing one another

Environment

Budgies use grammar to find meaning in unfamiliar phrases

Humans aren鈥檛 the only grammar pedants. When played new songs, budgerigars use the underlying structure to work out what they mean

Environment

Eider duck caught diving beneath the Norwegian waves

Environment

Culture picks: Time to spring-clean your mind

Earth

Earlier ice melt in the Arctic cuts survival of birds in Africa

Environment

Smallest perching bird鈥檚 long-lost family revealed by genetics