Birdlife is calling for African greys to be added to the endangered list. Picture / Greg Arnold

Birdlife is calling for African greys to be added to the endangered list. Picture / Greg Arnold

Talent can be fatal.

There's hardly any bird that can imitate the human voice like the African grey parrot - Pretty Polly is only the start of it - which as a result is one of the world's favourite pets, and particularly popular in Britain.

But now its very popularity is becoming a mortal danger, as trade in the birds is driving them to extinction in an increasing part of their range.

On Thursday, conservationists will make a bid to have the massive international traffic in grey parrots temporarily banned, or at least slowed down, to give the species a chance to recover from the depredations of collectors, traders and bird fanciers, while conservation measures are put in place.

At a committee meeting of the Convention on International Trade in Endangered Species (CITES) in Lima, Peru, officials from BirdLife International, the global alliance of bird conservation groups, will ask for a full moratorium on the trade in African greys, or at least, a trade suspension or reduction in some of the leading exporting countries, including Guinea, Liberia, Sierra Leone, the Ivory Coast and Cameroon.

Although there are still substantial numbers of the birds in the wild across tropical Africa - estimates of the numbers range between 680,000 and 13m individuals - the population as a whole has been shrinking dramatically, and in some of the 23 African countries where it is traditionally found it has virtually disappeared.

BirdLife is proposing that it be added to the official list of endangered species maintained by the International Union for the Conservation of Nature.

Behind the decline lies the enormous trade in African greys.

Between 1994 and 2003 more than 359,000 wild-caught birds were traded, according to CITES records.

Major exporting countries are led by Cameroon, with 44 per cent of the reported trade, and the Democratic Republic of the Congo, with 33 per cent, while the major importers are the countries of the European Union, including Britain.

According to the Royal Society for the Protection of Birds (RSPB), the EU is responsible for 93 per cent of the trade in wild birds listed with CITES.

The African grey parrot's popularity as a pet is not hard to understand.

People have enjoyed its ability to mimic the human voice for centuries.