Theres actually a place that produces them for meat and feathers less than 20 mins from me. If only livestock wasn't such a commitment and didn't take away hunting ground. 

probably killed quite a few cats.
emu crossed with a wolf?Nope....those cats and coyotes don't stand a chance.
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yup I've known farms to use them around me.
farmers use emus around here to keep coyotes away from sheep or cattle.Hello; Do you mean they have them to keep you away or that the folks with the birds just happen to be somewhere around you?