US | dead animals More Animal Die-Offs: 200 Cows Dead in Wisconsin Farmer thinks a virus is probably involved By Polly Davis Doig Posted Jan 16, 2011 11:14 AM CST Copied A healthy steer eats hay Tuesday, Feb. 24, 2009, at the Buffalo Livestock Market where about 60,000 cattle are auctioned each year in Buffalo, Mo. (AP Photo/Kelley McCall) First it was birds, then fish, then more fish. Now, it's 200 cows lying dead in a Wisconsin field, reports the Rapid-Tribune. But this mass die-off might be a little less murky: The farmer reportedly told local officials he suspected the animals died of one of two viruses common to unvaccinated cattle. The animals are undergoing testing. Read These Next Iran-linked hackers launch 'significant' cyberattack. Here's where Sean Penn was on Oscars night. Trump makes his 'demand' on Strait of Hormuz. Trump is 'not happy with the UK' over his Persian Gulf push. Report an error