[rfreedom4u]

I don’t consider less than 8 birds a month over 4,000 acres carnage.

I agree. How many birds are killed each year by housecats?

[thackney]

According to this article, 1.4 billion per year.

Outdoor cats kill between 1.4 billion and 3.7 billion birds a year, study says
http://www.washingtonpost.com/national/health-science/outdoor-cats-kill-between-14-billion-and-37-billion-birds-a-year-study-says/2013/01/31/2504f744-6bbe-11e2-ada0-5ca5fa7ebe79_story.html