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Invasive species in Australia

10,000 Birds

The feral cats were thought to have arrived as pets during early European settlement and then more were introduced to control rabbits and rodents, but now they inhabit all of Australia including offshore islands and are responsible for a high percentage of native species loss. Feral cat predation on Pied Oystercatcher eggs.

Australia 157
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Comebackers

10,000 Birds

That is a big difference compared to the 2,000+ singing males detected in 2012, well above the recovery goal for this species set by the U.S. Rabbits were introduced to the island by guano miners, which turned the previously verdant island into a giant sand dune; almost all vegetation was wiped out. Fish and Wildlife Service.

Albatross 211