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Wednesday, 6 July 2011

One Percenters at Beddington Farmlands


Green Sandpiper (Up to 1% of the British wintering population is hosted at Beddington)

The latest British Birds (Vol 104) contains the most recent overwinter population estimates of British Waterbirds with new 1% threshold figures. If an individual site contains 1% or more of a species wintering population then it is of conservation significance. At Beddington there are three species that fall into this category.

Greeen Sandpiper (1% threshold is 9): Upto 11 in the winter of 2007 (last published bird report)
Caspian Gull (1% threshold is 1): At least 4 in the winter months of 2007.
Lesser Black Backed Gull (1% threshold is 1,200): Highest count of 2580 in March 2007.
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2 comments:

  1. Nick Tanner9 July 2011 at 10:25

    interesting stuff Peter, here on the other side of London we regularly get up to three overwintering Common Sandpipers on the Lower Lea, the 1% threshold for this species is 1, so this is good news for a site that is continually threatened with development

    regards Nick Tanner

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  2. Peter Alfrey9 July 2011 at 12:40

    Hi Nick,
    It's great to have these indicators to 'prove' the value- all helps in conservation.

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