How Many Household Cats Hunt Birds? "Domestic cats kill many more wild birds in the United States than scientists thought," states a recent article.1 Researchers used a sample of households in the US with cats to estimate that of household cats in the US hunt outdoors. 1Milius, S., "Cats kill more than one billion birds each year," Science News, 183(4),February 23, 2013, revised March 8, 2014. Data approximated from information give in the article.

Around 1 million house cats have been found to do that.

Explanation:

The exorbitant number of cats that are killing the birds in the out are seemingly in the numbers that may not be possible.

There are close to a few million cats that are domesticated in homes as of now but there is also a substantial number of them in the roads suburbs and the wild.

These animals are the ones that would be hunting most of the birds.

This is not to say that it is not happening in the other domesticated ones too as they are wont to be the predators here too.

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