AVESOPHILUS:
Glaucous Gull , Troon Harbour 11 jan 1993
AVESOPHILUS:
Glaucous Gull Troon harbour , 11 jan 1993
AVESOPHILUS:
Iceland Gull first winter Troon Harbour 14 feb 1994
AVESOPHILUS:
Glaucous Gull , Troon Harbour 23 jan 1983
AVESOPHILUS:
Glaucous Gull at troon Harbour 15 mar 1993
AVESOPHILUS:
Glaucous Gull , Troon Harbour 15 mar 1993
AVESOPHILUS:
Iceland Gull first winter Troon Harbour 14 feb 1994
AVESOPHILUS:
Glaucous Gull Troon Harbour 26 mar 1995
AVESOPHILUS:
Glaucous Gull at Troon Harbour 26 mar 1995