A cow is a mature female bovine that has had at least one calf. An adult female over two years of age can be called a cow. Over 1000 breeds of cattle are recognized worldwide. More than 50 percent of cow feed is hay and silage, and other some cows are fed a high-grain diet. The cow coloring pages are free and printable on this page, you can download and print the pictures you like, then draw them with your kids.