The cuckoo roller or courol (Leptosomus discolor) is the only bird in the family Leptosomidae //, which was previously often placed in the order Coraciiformes but is now placed in its own order Leptosomiformes. The cuckoo roller is at the root of a group that contains the Trogoniformes, Bucerotiformes, Piciformes, and Coraciiformes.
|Female or juvenile|
It is a medium-large bird, living in forests and woodlands in Madagascar and the Comoro Islands. Three subspecies are described: the nominate L. d. discolor is found in Madagascar and Mayotte Island, L. d. intermedius on Anjouan, and L. d. gracilis of Grand Comoro. Based on its smaller size, differences in the plumage, and minor difference in the voice, the last of these is sometimes considered a separate species, the Comoro cuckoo roller (L. gracilis).
- BirdLife International (2012). "Leptosomus discolor". IUCN Red List of Threatened Species. 2012. Retrieved 26 November 2013.old-form url
- del Hoyo, J. Elliott, A. & Sargatal, J. (2001)
- Kuhl, H.; Frankl-Vilches, C.; Bakker, A.; Mayr, G.; Nikolaus, G.; Boerno, S.T.; Klages, S.; Timmermann, B.; Gahr, M. (2020). "An unbiased molecular approach using 3′-UTRs resolves the avian family-level tree of life". Molecular Biology and Evolution. 38 (msaa191): 108–127. doi:10.1093/molbev/msaa191. PMC 7783168. PMID 32781465.