PhysOrg Posted May 21, 2018 Share Posted May 21, 2018 Cooperation among different species of birds is common. Some birds build their nests near those of larger, more aggressive species to deter predators, and flocks of mixed species forage for food and defend territories together in alliances that can last for years. In most cases, though, these partnerships are not between specific individuals of the other species—any bird from the other species will do. View the full article Quote Link to comment Share on other sites More sharing options...
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