Combattente
BirdLife International. 2004. Birds in the European Union: a status assessment. BirdLife International, Wageningen.
BirdLife International. 2008. Species factsheet: Philomachus pugnax . http://www.birdlife.org.
Cramp S. & Simmons K.E.L. 1983. The Birds of the Western Palearctic. Oxford University Press, Oxford. Volume III.
