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Glossary
Gregarious: tending to form a group with others of the same species by habitually living or moving in flocks or herds rather than alone.
Monogamous: mating with a single partner.
Wattles: bare fleshy skin that hangs from the bill, throat or eye of birds.
del Hoyo, J., Elliott, A. and Sargatal, J. (1994) Handbook of the Birds of the World - New World Vultures To Guineafowl. Vol. 2.Lynx Edicions, Barcelona.
Lu, X. and Zheng, G. (2003) Reproductive ecology of Tibetan Eared Pheasant Crossoptilon harmani in scrub environment, with special reference to the effect of food. IBIS, 145 (4): 657 - 666.