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Cuckoo (Cuculus canorus)
LEASTCONCERN
Top facts
- The cuckoo is a brood parasite, laying its eggs in the nest of other species and will provide no parental care of its young.
- Cuckoo eggs mimic those of their most common hosts. If the hosts notice the extra egg they will abandon the nest.
Cuckoo fact file
- Description
- Biology
- Range
- Habitat
- Status
- Threats
- Conservation
- Find out more
- Glossary
- References
- Print factsheet
Cuckoo description
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Aves |
| Order | Cuculiformes |
| Family | Cuculidae |
| Genus | Cuculus (1) |
A well-known harbinger of spring, the arrival of the cuckoo (Cuculus canorus) in Britain is eagerly awaited each April (3). Adult males have bluish-grey upperparts and a white belly with dark barring. Females occur in two forms, one is similar to the male but the breast is buff coloured with dark barring; the other form is reddish brown, and often wholly covered with dark bars (2). Juveniles are slate-grey with touches of reddish-brown (2). The familiar call 'cuck-oo, cuck-oo' is imitated by the common name; later in the year females produce a 'bubbling' call (6).
- French
- Coucou gris.
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Related species
Cuckoo biology
The cuckoo is the only 'brood parasite' to breed in Britain (3). Individual females prefer certain foster birds, and lay eggs that closely mimic those of the foster species, 50 of which are known (3). A female will establish a territory encompassing a number of potential foster nests, and carefully observe activity, waiting until the nests are at the right stage. She then swiftly takes her chance, swooping down, ejecting an egg and laying one of her own (3). The unsuspecting host bird then incubates and feeds the impostor, who removes other eggs and young from the nest and often grows much larger than its foster parent (3). Female cuckoos usually lay fewer than 12 eggs in 12 different host nests each year (3). Cuckoos feed mainly on insects, spiders and worms (3).
TopCuckoo range
The cuckoo arrives in Britain during the second part of April from Africa south of the Sahara, and leaves in September (2). It is widespread in Britain and breeds throughout Europe, reaching as far east as Japan (3).
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Species with a similar range
|
You can view distribution information for this species at the National Biodiversity Network Gateway. |
Cuckoo habitat
The cuckoo occupies a broad variety of habitats, including all types of woodland, marshes, heaths and alpine areas (2).
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Species found in a similar habitat
Cuckoo status
The cuckoo is classified as Least Concern (LC) on the IUCN Red List (1). A widespread summer visitor to the UK (3). Included in the Birds of Conservation Concern Amber List (medium conservation concern) (4) and protected at all times under the Wildlife and Countryside Act 1981 (5).
Cuckoo threats
The Breeding Bird Survey (BBS) has shown that the population of the cuckoo in Britain has declined steadily; this is thought to be due to a decrease in populations of key host species such as meadow pipit and dunnock (7), probably due to habitat-related factors (5).
TopCuckoo conservation
No specific conservation action has been targeted at the cuckoo.
|
|
There may be further information about this species available via the National Biodiversity Network Gateway. |
|
View information on this species at the UNEP World Conservation Monitoring Centre. |
Find out more
For further information on the cuckoo:
-
BBC Wildlife Finder:
http://www.bbc.co.uk/nature/species/Common_Cuckoo -
RSPB:
http://www.rspb.org.uk/wildlife/birdguide/name/c/cuckoo/index.aspx
For more information on the cuckoo and other bird species:
-
BirdLife International:
http://www.birdlife.org
Authentication
Information authenticated by the RSPB:
http://www.rspb.org.uk/
Glossary
- Incubate
- To keep eggs warm so that development is possible.
- Territory
- An area occupied and defended by an animal, a pair of animals or a colony.
References
-
IUCN Red List (April, 2011)
http://www.iucnredlist.org/ - Mullarney, K., Svensson, L., Zetterstrom, D., & Grant, P.J. (1999) Collins Bird Guide. HarperCollins Publishers Ltd, London.
- Gooders, J. (1982) Collins British Birds. William Collins Sons and Co Ltd, London.
-
RSPB (2003) The population status of birds in the UK:
http://www.rspb.org.uk/Images/5_20625.pdf - RSPB (2003): Pers. comm
- Greenoak, F. (1979) All the birds of the air. Book Club Associates, London.
-
BTO, Breeding Birds in the Wider Countryside (November 2002):
http://www.bto.org/birdtrends2000/wcrcucko.htm
More »Related species
This species is featured in:
This species is featured in the Mediterranean Basin eco-region
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Male cuckoo
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