There are no figures currently available on numbers of wintering birds on the area of the silt lagoons. However, there is information on numbers of birds wintering on the whole of Rainham, Wennington and Aveley Marshes (which includes the silt lagoons). The table shows this data for key species (RSPB, 2001 ).
Wintering birds
|
Species |
Numbers wintering on the whole of Rainham, Wennington and Aveley Marshes (1979/80 - 1990/91). |
|
Red listed: |
|
|
Twite |
Mean winter maximum of 33 |
|
Linnet |
At least 200 most years, but up to 1000 have been recorded |
|
Reed bunting |
Up to 200 regularly winter |
|
|
|
|
Amber listed: |
|
|
Teal |
Mean winter maximum of 1450*. |
|
Pintail |
Upwards of 150 present on the lagoons in the early 1980's. Numbers have declined since. |
|
Shoveler |
Up to 110 |
|
Bearded tit |
Mean winter maximum of 19 |
(source: RSPB)
* nationally important numbers.