You don't have to be an ornithologist to know that red northern cardinals are male and brownish-gray ones are female. But what about a Cardinalis cardinalis that sports red feathers on one side of its body and brownish-gray feathers on the other? Why, that cardinal is half-male and half-female, of course--and just such a rare bird has been observed in northwestern Illinois. http://www.huffingtonpost.com/2014/...336.html?cps=gravity_2685_2490389776830584911 I think he/she is beautiful!!