Great Black-backed Gull (Larus marinus)
Species
Great Black-backed Gull (Larus marinus). Taken on Skomer, Pembrokeshore, on May 6th 2014.
Taken on Skomer, Pembrokeshore, on May 6th 2014.
(1/1600th sec at f11. Click image for larger version. © David Hastings)
Great Black-backed Gull (Larus marinus). Taken at Farmoor, Oxon., on February 2nd 2014.
Taken at Farmoor, Oxon., on February 2nd 2014.
(1/640th sec at f13. Click image for larger version. © David Hastings)

Description

L: 61 - 74 cm; WS : 144 - 166 cm

The largest gull, with a bulky body, thick neck and heavy bill. It has flesh-pink legs. For most of the year birds in four age-groups can be identified.

It is found in western and north-western Europe and Iceland.

It breeds on the coast, often on rocky islands, alone or in small colonies. In winter it can be found inland at rubbish dumps and reservoirs.

Great Black-backed Gulls are kleptoparasitic, often robbing other birds like sea ducks, cormorants and other gulls.

There are about 17000 breeding pairs in the UK, and around 77000 birds over-winter here.

Sightings

15-Apr-2018 : Farmoor Reservoir, Oxon (2)
05-Apr-2018 : Farmoor Reservoir, Oxon (3)
04-Mar-2018 : Farmoor Reservoir, Oxon (2)
23-Feb-2018 : Farmoor Reservoir, Oxon (2)
28-Jan-2018 : Farmoor Reservoir, Oxon (2)
06-Jan-2018 : Farmoor Reservoir, Oxon (1)

19-Nov-2017 : Farmoor Reservoir, Oxon (1)
12-Oct-2017 : Cley Marshes, Norfolk (1)
09-Oct-2017 : Titchwell Marsh, Norfolk (2)
24-Sep-2017 : Farmoor Reservoir, Oxon (1)
22-Sep-2017 : Farmoor Reservoir, Oxon (1)
20-Sep-2017 : Radipole Lake, Dorset (2)
19-Sep-2017 : Portland Bill, Dorset (2)
10-Aug-2017 : Farmoor Reservoir, Oxon (1)
01-Aug-2017 : Farmoor Reservoir, Oxon (2)

22-Oct-2016 : Farmoor Reservoir, Oxon (2)
04-Sep-2016 : Farmoor Reservoir, Oxon (2)
28-Aug-2016 : Farmoor Reservoir, Oxon (1)
04-Jul-2016 : Leighton Moss, Lancashire (2)
01-Jun-2016 : Lymington-Keyhaven NR, Hants (17)
06-Mar-2016 : Farmoor Reservoir, Oxon (1)
07-Feb-2016 : Farmoor Reservoir, Oxon (1)
04-Jan-2016 : Farmoor Reservoir, Oxon (1)

24-Oct-2015 : Titchwell Marsh, Norfolk (1)
22-Oct-2015 : Snettisham, Norfolk (1)
04-Oct-2015 : Farmoor Reservoir, Oxon (1)
06-Sep-2015 : Farmoor Reservoir, Oxon (2)
17-Jun-2015 : Lynton/Lynmouth, Devon (4)
30-Apr-2015 : Arne, Dorset (2)
29-Apr-2015 : Lulworth Cove, Dorset (2)

09-Nov-2014 : Farmoor Reservoir, Oxon
17-Aug-2014 : Farmoor Reservoir, Oxon (1)
31-Jul-2014 : Leighton Moss, Lancashire (4)
02-Jul-2014 : North Cave Wetlands, E. Yorkshire (1)
08-May-2014 : Fishguard, Pembrokeshire
08-May-2014 : Strumble Head, Pembrokeshire
08-May-2014 : Newport, Pembrokeshire
06-May-2014 : Skomer, Pembrokeshire (10+)
05-May-2014 : Pant, Ceredigion (1)
04-May-2014 : Mwnt, Ceredigion (2)
04-May-2014 : Teifi Estuary, Ceredigion
03-Apr-2014 : Port Meadow, Oxford, Oxon (6)
02-Feb-2014 : Farmoor Reservoir, Oxon (1)