i just got a cow on an early agg hunt.Lots of cows up on the mtn.at the time.The elk just kind of were going around the moo cows.The elk still just did what they wanted to do.Hard to track,when it was dry though.What was elk and what was moo cow calves.I missed one elk,that was only 300 yds above the cows,just waiting until dusk to go to the fields.Good luck though.The elk will just move around them though,if they want to go do something,they wont care about those cows.Problem is the moo cows will quickly eat down the feed,and create more flies which will move the elk a bit.