Tuesday, 14 February 2012
Avocet
Scientific Name:
Recurvirostra avosetta
Length:
42-46cm
Wingspan (mm):
67-77cm
Weight:
280g Description
It is quite simple to identify Avocets. The mostly white plumage, marked with sparse black narrow lines, is very distinctive, as are the upturned bill and blue legs. If the bird is feeding its bill may be hidden, but the way it is swept from side to side through the water is equally diagnostic.
Distribution
Became re-established as a breeding bird in Suffolk in 1947 and became the emblem of the RSPB. Since then the population has expanded in East Anglia. Best sites include Minsmere in Suffolk and Cley and Titchwell in north Norfolk. In winter some birds winter on the south coast, with the largest concentrations on the Exe and Tamar estuaries in Devon.
Habitat
Breeds in shallow brackish pools and also near estuaries. Winters on muddy estuaries.
Behaviour
Very aggresive bird will defend its territory against all threats including Marsh Harrier.
Population
The breeding population of Britain is estimated at between 1,262-1,266 pairs at 52 localities in 2002. Numbers of wintering birds on the south coast can reach 1270 birds.
Status
The Avocet is considered to be of medium conservation concern and as such is included within the 'Amber List' as published by the RSPB, BTO, etc.... It is included within this list due to moderate population declines and restricted distribution.
Did You Know?
This species is specially protected by Schedule 1 of the Wildlife and Countryside Act 1981 (as amended). This legislation protects Avocet from nest destruction, killing or injuring but also disturbance while breeding. The Avocet is used by the RSPB as their symbol.