Pet Project: How cats have an impact on the bird population – CBS News Experts say that cats kill between 1 to 4 billion birds every year, causing one-third of the 800 U.S. native bird species to be endangered or in … Read More at Source. Author: Pumilo Share this:TwitterFacebookMoreLinkedInRedditTumblrPinterestPocketTelegramWhatsAppLike this:Like Loading... Related Tags: Wild Birds January 15, 2023 by Pumilo Wild Birds 0