Vegetarians Are More Sociable Than Carnivores — In Birds

Birds that eat seeds are more sociable than birds that eat insects — a trait that appears to influence social evolution in many animals

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Male black-headed weaver (Ploceus cucullatus bohndorffi) building an elaborate hanging nest, Queen Elizabeth National Park, Uganda. (Credit: Sharp Photography / CC BY-SA 4.0)

There are 118 species of weaverbirds (family: Ploceidae) and most of them live in sub-Saharan Africa. These sparrow-sized songbirds get their common name…