Reproductive ecology

thumb|The Rooks Have Returned|The Rooks Have Come Back Again, [[Alexei Savrasov, 1871, canvas, oil, The Tretyakov Gallery, Moscow]] thumb|Colonies of Indian yellow-nosed albatross|Indian yellow-nosed albatrosses on [[Amsterdam Island]] thumb|Fur seals in a rookery in the [[Pribilof Islands in the 1950s.]] A rookery is a colony of breeding rooks, and more broadly a colony of several types of breeding animals, generally gregarious birds.

the unrestricted growth of populations resulting in the maximum growth of that population

thumb|Heronry in Stanley Park, Vancouver, British Columbia, [[Canada.]] thumb|Heronry at Carp Hills, Ottawa, Canada A heronry, sometimes called a heron rookery, is a breeding ground for herons.