The story of Darwin's finches and their relationship with other creatures of the Galapagos; tracing their evolution, how the islands were formed and how it's main inhabitants got there.
The story of Darwin's finches and their relationship with other creatures of the Galapagos; tracing their evolution, how the islands were formed and how it's main inhabitants got there.
1999-03-14
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The flight and feeding customs of the most important sea bird species of the Galapagos Islands are described. Some characteristic body and wing measurements are used to describe the flight of these species. The species which are able to forage furthest out at sea and deepest in the water are the most successfull on the Galapagos Islands, measured by their abundance. The least abundant bird is the lava-gull, a shore bird and surface-feeder.
"Without leaving his own garden, a man may know the world" - an abstract study of the wildlife found in every garden.
To show the habitat, life cycle and typical activities of the Barn Swallow.
Jim Moir and his wife Nancy continue on their ornithological adventure as they seek out their favourite seasonal birds and learn how they best evoke the festive spirit of Christmas.
Western Australia's iconic black cockatoos are in crisis. Their numbers have fallen dramatically over the past few decades and all three species in the south west of WA could become extinct in just 20 years unless something is done to protect their habitats. With the loss of the banksia woodlands on the Swan Coastal Plain to housing, Carnaby's Black Cockatoos have come to depend on the once vast exotic pine plantations on Perth's northern fringe.
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The long running, often bitter scientific debate over the origin of birds and the evolution of flight.
In honor of his 95th birthday, a look at Sir David Attenborough’s life and contributions to broadcasting and the natural world. Presented by BBC.