Thursday, December 1, 2011

Who are the winners and losers of bird species? Breasts are doves, but they are on the brink of extinction in the UK

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Some of the most emblematic birds in the UK are in danger of disappearing as farmland birds fell to the lowest figures ever recorded in Britain.

birds that feed and nest around farms fell by 52% over the past 40 years, with some species such as doves, partridges, gray, starlings, sparrows, buntings corn and more 80% during the period.

data published today by Defra, the British Trust for Ornithology and the RSPB.

The turtle is now endangered in the United Kingdom of farmland birds in danger of being completely removed from the British landscape.

Data are collected by an army of volunteer ornithologists across the country trying to cllect representative samples of each bird species on the sites.

The BTO says that the decline in farmland birds is

disturbing evidence that the conditions in the agricultural land do not improve despite adequate environmental protection. The situation is complex, without changing a single in agriculture, guilt, and the decline of certain agricultural specialists like the tortoise also due to problems in their wintering grounds in Africa. Other species (eg, Wood Pigeon) have prospered because of new crops such as rapeseed, but refuses to deterioration of agricultural species, such as those associated with grasslands and margins (Starling and Kestrel) are of great concern .

Other agricultural species, including the wagtail, greenfinches and lapwings are also worrying decline. Although most species undergo changes in land use and agricultural practices, the greenfinch is a victim of the disease, trichomoniasis

However, some birds have done very well, especially the "generalists" who are more adaptable to change. Sop, species such as blue tits, robins and blackbirds, which can live in gardens and other places dominated by men. The warmer weather allows general distribution, while specialists are species that is more difficult.

Meanwhile, the forest bird populations increased between 2009 and 2010, but says the BTO:

numbers of many long-distance migrants (cuckoo, nightingale, Flycatcher, Pied Flycatcher) continue to decline as the number of specialists in forest Willow Tit. There are many ongoing research to determine the cause of these declines and the factors at both ends of their migration routes (here and in Africa), it seems likely

The BTO has some useful information on trends of breeding birds and wintering waterfowl trends.

We have learned the most important information below. What can you do with it?

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