Great Black-backed Gull
JDM Records
2003 - Noted throughout the year in pretty consistent nos, but with a max of 36 on 18 Nov: the most since New Years Eve 2000, in unremarkable weather conditions. Monthly maxima as follows :
| Jan | Feb | Mar | Apr | May | Jun | July | Aug | Sep | Oct | Nov | Dec | |
| Max. | 6 | 13 | 13 | 16 | 16 | 7 | 16 | 5 | 8 | 6 | 36 | 6 |
2002 - Noted throughout the year but a noticeable increase in spring and summer, with a max 27 on 30 July. A pair was seen carrying nesting material on 19 May - probably part of the breakwater colony. Monthly maxima as follows :
| Jan | Feb | Mar | Apr | May | Jun | July | Aug | Sep | Oct | Nov | Dec | |
| Max. | 14 | 13 | 19 | 11 | 17 | 12 | 27 | 12 | 6 | 4 | 5 | 3 |
2001 - Noted throughout the year with max 15 on 21 Mar. Juvs from nearby breeding colony noted on 14 Aug. Monthly maxima as follows :
| Jan | Feb | Mar | Apr | May | Jun | July | Aug | Sep | Oct | Nov | Dec | |
| Max. | 6 | 6 | 15 | 6 | 5 | 5 | 14 | 6 | 5 | 15 | 4 | 5 |
2000 - Noted throughout the year.with max of 65 in 80 mins on 31 Dec. Monthly maxima as follows :
| Jan | Feb | Mar | Apr | May | Jun | July | Aug | Sep | Oct | Nov | Dec | |
| Max. | 12 | 8 | 12 | 9 | 8 | 1 | 5 | 7 | 9 | 20 | 10 | 65 |
Records from Bird Reports
1997 - Weymouth Bay/Lodmoor : 600+ on 21 and 22 Feb, with 350 still present on 25 Feb.
1995 - Weymouth Bay : up to 550 with the 'klondykers' in Jan/Feb.