Late-Season Lonesome Cow Call for November Bulls - Moose Calling 101 Showing you how to do a lonesome cow call for November bulls. This is the same call I used years ago while line cutting in the bush at a secluded camp job in mid-November at my family trap line just off the railroad. I was really just testing it out calling every 20 minutes, stepping out of the prospector tent to make a call whenever I went to the washroom and sure enough, it worked. That lonesome cow call brought a bull moose