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Invasive Species

Invasive Feral and Free-ranging Domestic Cats - a Significant Threat to Biodiversity, as Well as Human Health and the Welfare of Other Domestic Animals


Grant Sizemore, Director of Invasive Species Programs, American Bird Conservancy:


Domestic cats (Felis catus) are among the most harmful invasive species globally and are the top source of direct, anthropogenic bird mortality in North America. In addition to their predatory impact, domestic cats are also a source for the transmission of a variety of parasites and diseases to wildlife and people. Domestic cat management, however, is complicated by the species’ close association with people as pets, as well as the compassionate, but often misguided, behavior of individuals tending to unowned domestic cats. This talk will focus on the need for and best practices regarding domestic cat management, including steps to discourage establishment, a response framework, and technical guidance.

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