Scientific name: Cuculus canorus
Considered to be an early sign of spring, the song of the cuckoo sounds the same as its name: ‘cuck-oo’. It can be heard in woodlands and grasslands. Cuckoos famously lay their eggs in the nests of other birds.
Average lifespan: 4 years
Classified in the UK as Red under the Birds of Conservation Concern 4: the Red List for Birds (2015). Priority Species under the UK Post-2010 Biodiversity Framework. Listed as Vulnerable on the global IUCN Red List of Threatened Species.