SPECIES

Blue Vanga Cyanolanius madagascarinus

Guy M. Kirwan, Satoshi Yamagishi, Josep del Hoyo, Nigel Collar, and Masahiko Nakamura
Version: 1.0 — Published March 4, 2020

Breeding

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Phenology

Nesting observed in December in Madagascar, where season probably at least October–December based on specimen data, with a dependent juvenile observed in November (19, 13, 12, 15). Males with enlarged testes in September in Comoros (on Mohéli) (18), where an apparently dependent juvenile was observed in mid April (25).

Nest Site

Nest placed c. 12 m above ground, near fork between near-vertical, but slender branches (13).

Nest

Few data, with just one nest the object of detailed description (13). Cup-shaped nest constructed of fine twigs and a pale-colored down-like material (13).

Eggs

Clutch size unknown (1), but eggs pale bluish to greenish with mid-sized lilac-gray to red-brown speckles, most densely displayed at larger end, size 19.9–21.2 × 15.8–16.2 mm (26).

Parental Care

Dependent juvenile was fed by an adult male (12), suggesting that parental care is undertaken by both sexes (1).

Recommended Citation

Kirwan, G. M., S. Yamagishi, J. del Hoyo, N. Collar, and M. Nakamura (2020). Blue Vanga (Cyanolanius madagascarinus), version 1.0. In Birds of the World (S. M. Billerman, B. K. Keeney, P. G. Rodewald, and T. S. Schulenberg, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.bluvan1.01