Shelduck - 1980s winter

Sunday, October 9, 2011 at 9:00PM
Pembrokeshire Avifauna committee in 1980s BTO winter atlas, GHR, Shelduck

The BTO winter atlas showed that Shelducks were predominantly present in estuarine 10km squares during the winters of 1981-82, 1982-82 and 1983-84.

The colour for each 10km square represents over 81 birds seen in a day.

Graham Rees 

Article originally appeared on Birds in Pembrokeshire (http://pembsbirds.squarespace.com/).