Differences between the social behaviour of two species of Macaws of the genus Ara (Aves, Psittacidae) in captivity

Resum

The statistical analysis of the social relationships established in a mixed group of Macaws Ara macao and Ara ararauna in captivity, aliows to order the individuals using an index of social integration. The discrirninative analysis of the social interactions, separates the individuals in two groups specificaliy differenciated.