Series: The Wetland Bird Survey Volume: 2011
By: GE Austin (Author), WJ Read (Author), NA Calbrade (Author), HJ Mellan (Author), Andy J Musgrove (Author), W Skellorn (Author), Richard D Hearn (Author), David Stroud (Author), Simon R Wotton (Author), Chas A Holt (Author)
43 pages, colour photos, colour illustrations, colour maps, colour tables
The Wetland Bird Survey (WeBS) is a joint scheme of the British Trust for Ornithology (BTO), Royal Society for the Protection of Birds (RSPB) and Joint Nature Conservation Committee (JNCC), in association with Wildfowl & Wetlands Trust (WWT).
The principal aims of the scheme are to identify population sizes, determine trends in numbers and distribution, and identify important sites for non-breeding waterbirds in the UK. WeBS Core Counts are made annually at approximately 2000 wetland sites of all habitats; estuaries and large still waters predominate. Monthly coordinated counts are made mostly by volunteers, principally from September to March, with fewer observations during summer months. Data from other sources, e.g. roost counts of geese, are included where relevant.
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