Lesser black-backed gull
Scientific name: Larus fuscus
The lesser-black backed gull can be spotted around the coast in summer, with the biggest colony on Walney Island, Cumbria. Look for it over fields, landfill sites and reservoirs during winter.
Average lifespan: 15 years
Classified in the UK as Amber under the Birds of Conservation Concern 4: the Red List for Birds (2015).