Most frequent significant variables resulting from nest-site selection in 16 cinereous vulture breeding colonies.

Relation indicates the type of relationship (positive or negative) of the variable with the selection by the cinereous vulture; (n signif) shows the number of colonies for which the variables was statistically significant; (nstud) indicates the number of colonies in which the variable was studied, and Proportion shows the ratio of the two previous numbers (n1/n2). The table includes variables that were statistically significant more than once and in more than one third of the studied colonies.