The various species of avian scavengers in southern Spain concentrated on different parts of the carcasses. A facilitatory effect of vultures and Wild Boars on Magpies and kites were detected, as well as an inverted (inhibitory) effect when short-period records were considered. After a directionality index of aggressive behaviour was obtained, it was shown that within the same species either threats, attacks, or fights occur, whereas among different species the smaller size scavengers mainly direct attacks towards those of greater size and the latter mainly threaten the smaller ones. When the response to other individuals was recorded, an interspecific hierarchy pattern was detected. The intraspecific response made apparent a gradient of increasing tolerance from Magpies to kites and vultures.