peer-reviewed-study source

Free-ranging domestic cats and United States wildlife mortality

A systematic review estimated that free-ranging cats kill 1.3–4.0 billion birds and 6.3–22.3 billion mammals annually in the contiguous United States, with unowned cats responsible for most estimated mortality; it does not evaluate Orlando's undefined development plan.

Reviewed July 24, 2026

Loss, S.R., Will, T. and Marra, P.P., The impact of free-ranging domestic cats on wildlife of the United States, Nature Communications 4:1396 (2013).

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What this source supports

A systematic review estimated that free-ranging cats kill 1.3–4.0 billion birds and 6.3–22.3 billion mammals annually in the contiguous United States, with unowned cats responsible for most estimated mortality; it does not evaluate Orlando's undefined development plan.

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Topic reviews: Animal Welfare & Compassionate Communities

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Last reviewed
July 24, 2026