

Larus argentatus
Herring gulls are large, noisy gulls found throughout the year around our coasts and inland around rubbish tips, fields, large reservoirs and lakes, especially during winter. Adults have light grey backs, white under parts, and black wing tips with white 'mirrors'. Their legs are pink, with webbed feet and they have heavy, slightly hooked bills marked with a red spot. Young birds are mottled brown. They have suffered moderate declines over the past 25 years and over half of their UK breeding population is confined to fewer than ten sites.
Where does it live?
Breeding
Breeds, often in colonies, on coastal sites around the UK, including cliffs with grassy slopes, shingle beaches, small islands and rooftops in seaside towns. Also breeds on moors.
Wintering
Primarily coastal but generally more widespread in winter, ranging inland to feed on rubbish tips and roost on large lakes and reservoirs. Birds from Scandinavia join resident birds.
What does it eat?
Ominivorous - a scavenger.
What does it sound like?
Loud wails and laughs or more plaintive mewing.
When to see it
All year round.
| Herring gull Facts | |
| Eggs | Two - Four |
| Incubation | 28-30 Days |
| Fledging | 35-40 Days |
| Maximum lifespan | 31 Years |
| Length | 53-59 cm |
| Wingspan | 138-150 cm |
| Weight | 690-1,495 g |