Enw gwyddonol: Sterna hirundo
During the breeding season, the common tern can be seen around our coasts and also inland at gravel pits, reservoirs and lakes. It nests in noisy colonies and can be spotted plunge-diving for fish.
Average lifespan: 12 years
Classified in the UK as Amber under the Birds of Conservation Concern 4: the Red List for Birds (2015).