- Clamator glandarius
35–39 cm (13¾-15¼ in). Tail long and wedge-shaped.
- Pale silvery-grey crown and crest
- Upperparts are grey with an abundance of white spots
- Chin and throat are yellowy-white
- Belly creamy-white
- Black on upperparts where adult is grey
- Rufous on primaries
Europe, Middle East and Africa:
In Africa resident breeder from just south of the Sahara to Zambia and Mozambique (avoiding areas with rainforest); summer migrant to Southern Africa.
In Middle East summer migrant to Turkey, Iraq, Iran, Israel, and Egypt.
In Europe summer visitor to Spain, Portugal, southern France, Italy, and eastern Greece.
Breeds in heathland with occasional trees, Cork Oak Quercus suber being a favourite in Iberia. Also Olive Olea europaea groves.
It's diet consists mainly of insects.
It parasitises nests of the crow family (in Europe mainly the two species of magpies), and may lay several eggs in the same nest. In southern Africa the most common hosts are Pied Crow, Cape Crow and Pied Starling. In western Europe is a very early breeder, the adults have left the region by early June.
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2018. The eBird/Clements checklist of birds of the world: v2018. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
- Birds of Kenya
- Collins Field Guide 5th Edition
- Collins Bird Guide ISBN 0 00 219728 6
- Beaman, M., S. Madge, K.M. Olsen. 1998. Fuglene i Europa, Nordafrika og Mellemøsten. Copenhagen, Denmark: Gads Forlag, ISBN 87-12-02276-4
- Birdlife International datazone
- BirdForum Opus contributors. (2021) Great Spotted Cuckoo. In: BirdForum, the forum for wild birds and birding. Retrieved 12 May 2021 from https://www.birdforum.net/wiki/Great_Spotted_Cuckoo