Great Northern Diver   Gavia immer

Calvert Sailing Lake - 28th November 2006

Photo copyright Tim Watts

This first winter Great Northern Diver was found by Tim Watts mid afternoon.  It was still present until at least 7:45 the following morning but was seen to fly off east.

To see details of all 14 prior records of this species in the county, click here.

Taplow Gravel Pit - December 1986

Photo copyright Mike Wallen

This first winter Great Northern Diver was present from 12th December 1986 until 11th January 1987 and provided a rare treat for local birders.  At times it could be seen to submerge as a speed boat circled the lake.  It would gradually sink beneath the water and surface again quite some time later.