Not really while hunting. Easier to get the things in focus when dead.... I like meat.
Now, there are photo ops that I have missed and have regrets. One is a snowy owl perched on the tripod center struts of a big antennae up in Barrow. That sucker knew how to hunt for lemmings!
The most recent was a Masai herder in Tanzania, waiting to cross his cattle . They were ranked up nearly perfectly about 8 wide and 10 deep. Danged near military. Those bovines were trained!