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Barn Owls: Evolution and Ecology – Why has the barn owl been so successful in colonising the planet?

Why were these 17 species such successful colonisers in contrast to most other birds? Most cosmopolitan birds exploit water environments and because there is water everywhere, with continents surrounded by oceans, this is not surprising! There are just four cosmopolitan species that are not associated with water: pigeons, house sparrows, peregrine falcons and barn owls! […]

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