Herring Gulls are less common in the borough than in surrounding boroughs that border the River Thames, and they are also less common here than Black Headed Gulls and Common Gulls, however, there are usually at least a few in most Gull flocks, particularly outside the breeding season. Non breeding birds and juveniles may flock at Wanstead Flats or Fairlop Gravel Works during the breeding season
Larger numbers can be seen flying overhead to roost.
2010 Winter Numbers: (largest count) - incomplete
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