Rower and Olympic gold medallist Alex Gregory on the house sparrow for Tweet of the Day.
Michaela Strachan presents the arctic skua.
Chris Packham presents the barn owl.
Miranda Krestovnikoff presents the story and sound of the barn owl.
Wildlife sound recordist Chris Watson presents the cattle egret.
London chef and restaurant owner Cyrus Todiwala on his love of the city's house sparrow.
David Lindo the Urban Birder on seeing an osprey next to Wormwood Scrubs in London.
At the beginning of Armistice week, Derek Niemann recalls sparrows on the Western Front.
Wildlife sound recordist Chris Watson presents the grey plover.
Michaela Strachan presents the story and sound of the house sparrow.
James Aldred follows the lives of a family of peregrines in his local quarry.
Wildlife gardener and writer Kate Bradbury loves sparrows in this Tweet of the Day.
Nature writer Melissa Harrison presents the case for the humble and rather noisy 'spadger'
Nadia Archer of the RSPB recalls Manchester's peregrines for Tweet of the Day.
Lionel Kelleway is on a nocturnal owl prowl in Somerset. Presented by Chris Packham.
Steve Backshall presents the story and sound of the osprey.
Paul Evans meets Roy Dennis, who has spent a life with ospreys, in the Scottish Highlands.
Caz Graham goes in search of Cumbria's regular visiting ospreys.
Helen Mark looks at the battle between water supply and wildlife at Rutland Water.
Brett Westwood investigates the biology and culture of owls.
Writer Paul Evans has an unnerving encounter with a barn owl in this Halloween tale.
Bill Oddie presents the peregrine.
Avian vet Richard Jones introduces the bird that inspired his career.
Wildlife sound recordist Chris Watson presents the rock dove.
David Attenborough presents the sanderling.
Wildlife sound recordist Chris Watson presents the sooty shearwater.
Tara Robinson describes an unexpected barn owl encounter in her own back garden.
David Attenborough presents the whimbrel.
Nature detective Tom Heap investigates who, or what, is killing the common sparrow.
Birdwatching's irreverent Tweeter YOLOBirder tells how he became hooked on peregrines.