American songbirds are being wiped out by banned pesticides
By Leonard Doyle in Washington
The Independent
Friday, 4 April 2008
The number of migratory songbirds returning to North America has gone into sharp decline due to the unregulated use of highly toxic pesticides and other chemicals across Latin America.
Ornithologists blame the demand for out-of-season fruit and vegetables and other crops in North America and Europe for the destruction of tens of millions of passerine birds. By some counts, half of the songbirds that warbled across America's skies only 40 years ago have gone, wiped out by pesticides or loss of habitat.
Forty-six years ago, the naturalist Rachel Carson wrote Silent Spring, a study of the ravages caused to wildlife, especially birds, by DDT. The chemical's use on American farms almost eradicated entire species, including the peregrine falcon and bald eagle.
The pesticide was banned and bird numbers recovered, but new and highly toxic pesticides banned by the US and European Union are being widely used in Latin America.
Because of changed consumer habits in Europe and the US, export-led agriculture has transformed the wintering grounds of birds into intensive farming operations producing grapes, melons and bananas as well as rice for export.
Ornithologists say another silent spring is dawning across the US as birds are being poisoned by toxic chemicals or killed as pests in their winter refuges across South and Central America as well as the Caribbean. They say that many species of songbird will never recover, and others may even become endangered or extinct if controls are not put in place or consumer habits changed.
More problems await those birds which make it home. Millions of acres of wilderness the birds use as nesting grounds have been ploughed under in the drive to grow corn for ethanol, for bio-fuel.
(Continued here.)
The Independent
Friday, 4 April 2008
The number of migratory songbirds returning to North America has gone into sharp decline due to the unregulated use of highly toxic pesticides and other chemicals across Latin America.
Ornithologists blame the demand for out-of-season fruit and vegetables and other crops in North America and Europe for the destruction of tens of millions of passerine birds. By some counts, half of the songbirds that warbled across America's skies only 40 years ago have gone, wiped out by pesticides or loss of habitat.
Forty-six years ago, the naturalist Rachel Carson wrote Silent Spring, a study of the ravages caused to wildlife, especially birds, by DDT. The chemical's use on American farms almost eradicated entire species, including the peregrine falcon and bald eagle.
The pesticide was banned and bird numbers recovered, but new and highly toxic pesticides banned by the US and European Union are being widely used in Latin America.
Because of changed consumer habits in Europe and the US, export-led agriculture has transformed the wintering grounds of birds into intensive farming operations producing grapes, melons and bananas as well as rice for export.
Ornithologists say another silent spring is dawning across the US as birds are being poisoned by toxic chemicals or killed as pests in their winter refuges across South and Central America as well as the Caribbean. They say that many species of songbird will never recover, and others may even become endangered or extinct if controls are not put in place or consumer habits changed.
More problems await those birds which make it home. Millions of acres of wilderness the birds use as nesting grounds have been ploughed under in the drive to grow corn for ethanol, for bio-fuel.
(Continued here.)
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