Mulie fever - glad to hear I'm not the only one. I doubt that the bulls bark, but wont rule it out just because I've never heard it. If they do its rare in comparison to the cows, who bark every time they get spooked. I had a buddy one time in the days before videos and DVD who was trying to cow call for bulls. We split up he went down the bottom I went down the top. I heard him jump some cows (he had bull tag I had cow) by the bark. I didnt see any of them come my way and moved on down the ridge 1/2 mile and the same thing..some cow barking then nothing.I didnt see any elk come out either side of the canyon. This goes on all morning. He was jumping them, but we weren't seeing them. We finally caught up w/ each other around noon and thats when I realized the truth[].....my buddy had was imitateing the only cow noise he'd ever heard.....THE ALARM BARK[:@][:@].