Editing Bird nest (section)

==Colonial nesting==

[[File:PMontezumaNests03.jpg|thumb|Nesting colony of [[Montezuma oropendola]]s]]{{Main|Bird colony}}
Though most birds nest individually, some species—including [[seabird]]s, penguins, flamingos, many [[heron]]s, [[gull]]s, [[tern]]s, [[Ploceidae|weaver]], some [[corvid]]s and some [[Old World sparrow|sparrow]]s—gather together in sizeable colonies. Birds that nest colonially may benefit from increased protection against predation. They may also be able to better use food supplies, by following more successful foragers to their foraging sites.<ref>{{Harvnb|Ward|Zahavi|1973}}</ref>