Two more British bird species "Red
Listed"!
It is reported that another two more of Britains regularly
nesting birds are heading towards extinction. In the latest revision
of Bird Life Internationals Red List' the curlew
and the Dartford warbler have been listed as Near Threatened
- which is a classification only one step below those species facing
global extinction.
The latest additions
swell the numbers of nesting Near Threatened birds in
Britain to five; joining the red kite, corncrake and black-tailed
godwit on the list of endangered bird species.
In Britain the curlew,
although still widespread, is a rapidly-declining species in many
areas. Meanwhile the Dartford warbler, a largely heathland bird,
is said to be expanding its range rapidly from the southern counties
of England, largely because of heathland conservation, restoration
programmes and milder winters. But the news is not so good for the
warbler - which is declining rapidly in other parts of its European
range, meaning Britains population of this species is of greater
global significance.
The latest assessments
are based on the population declines of both birds across their
global ranges. The curlew is generally found across a belt of central
and northern Europe and Asia, while 90% of the Dartford warbler
is found in southern and western Europe.
In Britain, curlew numbers
have fallen by 53% between 1970 and 2005, and by 37% between 1994
and 2006. It is believed that around 30% of the western European
curlew population nests in Britain. The global population is suspected
to have fallen by around 25% in the past 15 years.
BirdLife International
estimates that the Dartford warbler may have declined in Europe
by as much as 40% over the last decade. In its Spanish heartland,
the warbler decreased by nearly six per cent per year between 1998
and 2006. Although, in Briton, the Dartford warbler has extended
its range and increased its population to a total of 3209 territories
in 2006.
Globally, the majority
of species on the Red List are confined to islands or have very
small ranges, perhaps limited by available habitat.
A RSPB scientist, recently
claimed: Since 1600 only two species of European bird - the
great auk and the Canarian black oystercatcher - have become globally
extinct. But the inclusion of widespread and familiar species like
the curlew and the Dartford warbler to the list of birds facing
trouble is deeply concerning and a warning that we will lose more
species without urgent action. It is a sign that more and more birds
are unable to cope with the fundamental changes, like habitat destruction
and climate change that we are wreaking on our continent and the
planet. Currently, 50 out of Europe's 540 bird species are on a
path towards extinction. We now need more urgent action to prevent
some of our once-familiar birds from joining the great auk in the
extinction ledger.