Knot – 2020

Calidris canutus – PIBYDD YR ABER – Winter visitor and passage migrant. 

The knot breeds on the high Arctic tundra of Canada, Greenland and Russia.  The majority of those wintering in the UK are of the Greenland and eastern Canada subspecies.  However, one colour-ringed bird recorded in Pembrokeshire was also seen in northern Norway.

198243 
198445 
198647 
1990-91 
1993-94 
1995-96 
1997-98 
2001432 
2003434 
2005436 
2007438 
2009-10 
2011-12 
2013-14 1 
2015 
-16 
2017-18 
201E- 
20 
3 
3 
3

Most of the UK wintering population is on the east side of Britain, although flocks of several thousand do occur on the Dee, Dyfi and Carmarthen Bay estuaries.  However, numbers in Pembrokeshire seem always to have been relatively small.  We just don’t have the vast open mudflats that this species prefers.

This map was produced by the West Wales Biodiversity Information Centre using data collected between November and February for the BTO Atlas 2007-11, with additional data collected in 2011-12 winter to fill gaps in coverage.

The most likely places to see Knot in Pembrokeshire are the outer parts of the Cleddau (although they are occasionally seen further upstream), Teifi and Nevern Estuaries, and also on the large beaches of Freshwater West and Frainslake.

Annie Haycock (BBS & WeBS local organiser)


References:

BALMER D, GILLINGS S, CAFFREY B, SWANN B, DOWNIE I, FULLER R. 2014. Bird Atlas 2007-11: The Breeding and Wintering Birds of Britain and Ireland.  HarperCollins.  UK

HBW – Handbook of the Birds of the World

LACK P. 1986.  The Atlas of Wintering Birds in Britain and Ireland, T & A. D. Poyser, London

LOVEGROVE R, WILLIAMS G, WILLIAMS I. 1994.  Birds in Wales. T & A. D. Poyser, London

Pembrokeshire Bird Reports

WERNHAM. C, TOMS. M, MARCHANT. J, CLARK. J, SIRIWARDENA. G, BAILLIE. S. 2002. The Migration Atlas, Movements of the birds of Britain and Ireland, T & A. D. Poyser, London

More about the Knot in Pembrokeshire