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The Cattle Egret Expansion

10,000 Birds

Other species have certainly expanded their ranges, but never in such a rapid and global scale. They feed on insects stirred up by the herds, at times sitting on the animal itself picking off ticks and other insects. For reasons that are not quite clear, this species underwent a massive range expansion.

Cattle 171
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Mammals of Madagascar (Lynx Edicions)

10,000 Birds

No, Madagascar is the most famous for an endemic group of mammals: lemurs, sifakas, indri, aye-aye – in total, 112 endemic species and subspecies of lemurs alone! Still, there should be no problem with larger species that allow for longer observation time (e.g. Larger species, that is, excluding dolphins and whales.