Tweet of the Day

Latest Episodes:

Trumpeter Swan Jan 15, 2015

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Tweet of the Day is the voice of birds and our relationship with them, from around the world. Liz Bonnin presents the sonorous trumpeter swan of North America. Across an Alaskan wilderness powerful sounds and calls emanate from the largest and heaviest of all wildfowl, the pure white trumpeter swan. With a wingspan of up to 250 cm, the biggest male trumpeter swan on record weighed over 17 kilogrammes, heavier than mute swans. They breed on shallow ponds and lakes in the wilder parts of north west and central North America. Hunted for feathers and skins, they were once one of the most threatened birds on the continent, with only 69 birds known in the United States, although populations hung on in Alaska and Canada. Since then trumpeters have been protected by law and populations have recovered in many areas. Alaska and Canada remain strongholds and today reintroductions are returning this musical bird to their former range in the USA.

Adelie Penguin Jan 14, 2015

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Tweet of the Day is the voice of birds and our relationship with them, from around the world. Liz Bonnin presents the adelie penguin on a windswept Antarctic shore. A huddle of braying shapes on a windswept shore in Antarctica reveals itself to be a rookery of Adelie Penguins. These medium sized penguins whose white eye-ring gives them an expression of permanent astonishment were discovered in 1840 and named after the land which French explorer Jules Dumont d'-Urville named in honour of his wife Adele. They make a rudimentary nest of pebbles (sometimes pinched from a neighbour) from which their eggs hatch on ice-free shores in December, Antarctica's warmest month, when temperatures reach a sizzling minus two degrees. In March the adult penguins follow the growing pack ice north as it forms, feeding at its edge on a rich diet of krill, small fish and crustaceans. But as climate change raises ocean temperatures, the ice edge forms further south nearer to some of the breeding colonies, reducing the distance penguins have to walk to and from open water. But, if ice fails to form in the north of the penguin's range it can affect their breeding success, and at one research station breeding numbers have dropped by nearly two thirds.

Producer : Andrew Dawes

Black-footed Albatross Jan 13, 2015

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Tweet of the Day is the voice of birds and our relationship with them, from around the world. Liz Bonnin presents the black-footed albatross of Midway Atoll in the Pacific Ocean. Two dusky-brown birds point their bills skywards to cement their lifelong relationship, these are black-footed albatrosses are plighting their troth in a former theatre of war. At only a few square kilometres in size, the island of Midway is roughly half way between North America and Japan. Once it was at the heart of the Battle of Midway during World War Two, but today it forms part of a Wildlife Refuge run by the U.S. Fish and Wildlife Service and is home to white laysan albatross and the darker Black footed Albatross. Around 25,000 pairs of Black-foots breed here. Each pair's single chick is fed on regurgitated offal for six months, after which it learns to fly and then can be vulnerable to human activity on the airbase. But careful management of both species of albatrosses near the airstrip has reduced the number of casualties to a minimum.

Producer : Andrew Dawes

Snow Petrel Jan 12, 2015

Show notes

Tweet of the Day is the voice of birds and our relationship with them, from around the world. Liz Bonnin presents an Antarctic specialist, the delicate looking snow petrel. On a wind blasted Antarctic iceberg, small white hummocks sprout beaks to bicker and flirt with each other. These are snow petrels, one of the hardiest bird species in the world. Few bird species breed in the Antarctic and fewer still are so intimately bound to the landscape of snow and ice. But the near pure white snow petrel makes its home in places where temperatures can plummet to -40 Celsius and below. Returning to their breeding areas from October, the nest is a skimpy affair nothing more than a pebble-lined scrape in a hollow or rocky crevice where the parents rear their single chick on a diet of waxy stomach oil and carrion. But for a bird of such purity the snow petrel has a ghoulish diet, foraging at whale and seal carcasses along the shore. Although it breeds on islands such as South Georgia which are north of the summer pack ice, the snow petrel's true home is among snow and ice of its Antarctic home.

Producer Andrew Dawes

Montserrat Oriole Jan 09, 2015

Show notes

Tweet of the Day is the voice of birds and our relationship with them, from around the world.

Liz Bonnin presents Montserrat oriole from the Caribbean island of Montserrat. In 1995, after being dormant for over 300 years, a volcano on erupted. The eruption not only destroyed Montserrat's capital but much of the wildlife couldn't escape, and one bird, the Montserrat oriole was almost silenced forever. The male is a colourful bird with coal-black head, wings and tail and underparts the colour of egg-yolk. It is one of the most endangered birds in the world, a bird caught between a rock and a hard place. Its forest home had already been reduced by cultivation and introduced predators. It was reduced to living in fragmented pockets of forest, two thirds of which were destroyed in the 1995 and later eruptions. This threatened to wipe out an already endangered bird. So, conservationists from Jersey Zoo moved 8 orioles into captivity to avoid natural extinction and now a captive breeding programme is successfully underway, such as this oriole specially recorded for Tweet of the Day at Chester Zoo by Andrew Dawes

Producer Andrew Dawes

Brown Skua Jan 08, 2015

Show notes

Tweet of the Day is the voice of birds and our relationship with them, from around the world. Liz Bonnin presents brown skua hunting over an Antarctic landscape. These bulky brown birds with their hooked death dealing bills are often cast as villains alongside the apparently helpless and lovable penguins. But skuas are highly efficient predators, their skills honed to find the maximum food they can in a largely barren landscape. They're resourceful pirates, forcing other birds to drop or disgorge their catches. They also scavenge around fishing boats or loiter at seal colonies where carcases are easy meat. But a penguin rookery which may have hundreds of pairs of birds provides a real bounty, where waiting for an opportunity, the keen-eyed skua swoops to seize its next victim which if it is small enough, will even swallow it whole.

Producer : Andrew Dawes

Blue Rock Thrush Jan 07, 2015

Show notes

Tweet of the Day is the voice of birds and our relationship with them, from around the world.

Liz Bonnin presents the blue rock thrush, perched high on a Spanish castle. The blue rock thrush has a slim silhouette, rather like that of a blackbird, but these largely sedentary, elusive and sun-loving birds are a rare sight in northern Europe. They are widespread in summer across southern Europe and also occur in the Arabian Peninsula and across most of south-east Asia. The male lives up to his name, as in sunlight his deep indigo body feathers contrast with his darker wings and tail. His mate is a more muted mid brown, and barred beneath. Blue rock thrushes often nest in old ruins, but can also be found in houses in villages and on the edge of towns. Here in sunny spots they feed on large insects like grasshoppers and will even take small reptiles in their long thrush-like bills.

Producer Andrew Dawes.

Spoon-billed Sandpiper Jan 06, 2015

Show notes

Tweet of the Day is the voice of birds and our relationship with them, from around the world.

Liz Bonnin presents the diminutive spoon-billed sandpiper of the high Russian tundra. Spoon-billed sandpipers are wading birds, no bigger than a house sparrow. They have rust-coloured feathers and a black, spoon-shaped bill for sifting tiny creatures from the mud or catching insects on the tundra of eastern Russia, where they breed. In winter they fly down to south-east Asian estuaries. Here they are increasingly threatened by the reclamation of mudflats for development and by local people who trap the waders in fine nests to eat. Today, there may be fewer than a thousand birds left. Now conservationists have taken some birds into captivity to establish a breeding stock, but others are being helped on their breeding grounds by headstarting, whereby adults are encouraged to lay a second clutch of eggs after the first are removed. Its hope that this work, plus encouraging local hunters in Asia to release any sandpipers caught in nets, will secure the spoon-billed sandpiper for future generations.

Raggiana Bird-of-Paradise Jan 05, 2015

Show notes

Tweet of the Day is the voice of birds and our relationship with them, from around the world.

Liz Bonnin presents the displaying Raggiana bird-of-paradise from Papua New Guinea. An explosion of colour flashes across the tree canopy of a rainforest: male Raggiana birds-of-paradise, one of the most spectacularly coloured birds in the world, are displaying to one another. The Raggiana or Count Raggi's bird-of-paradise is Papua New Guinea's national bird and it's easy to see why. His yellow head and green throat are eye-catching enough but even more flamboyant are the long tufted flank feathers which he can raise into a fan of fine reddish-orange plumes. Males gather at traditional display sites quivering these enormous flaming plumes like cabaret dancers as they cling to an advantageous branch. The urgency of their display is underlined by frantic calls which echo through the canopy, in the hope he can impress the much plainer female to mate with him.

Producer : Andrew Dawes

Black Swan Jan 02, 2015

Show notes

Tweet of the Day is the voice of birds and our relationship with them, from around the world. Sir David Attenborough presents a widely regarded symbol of Australia, the black swan. These stately looking birds are native to the wetlands of south-western and eastern Australia. The New Zealand population was hunted to extinction but has now been reintroduced there. Their plumage is charcoal grey rather than black and beautifully ruched along their lower back, hiding the white primary feathers which are fully revealed in flight. Their only colour is a raspberry- coloured bill. Black swans behave like nomads, tracking local rains and breeding when they can. In Britain as a collection bird, a few have even cross-bred with mute swans to produce a greyish hybrid nick-named the 'Blute Swan'.

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