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Feral Cats Are An Invasive Species in North America (and elsewhere)

10,000 Birds

In some regions of the world, the carnivore landscape is taken up by many different cats at the middle and larger range, and by things like civets and mongoose at the smaller end. Free-ranging domestic cats have been introduced globally and have contributed to multiple wildlife extinctions on islands. billion birds and 6.9–20.7

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The Whistle Blowers

10,000 Birds

The combined effects of hunting, habitat loss and predation by introduced animals like rats and mongoose have extirpated the species from some islands and reduced numbers significantly on others. Between 1985 and 1991, the ducks suffered a further drastic decline with fewer than 100 birds estimated from Grand Cayman.