What are you using for a set of binoculars to start with. Personal I use 15x50 binoculars. I used to use spotting scope too. I do set my binoculars on a tripod to watch. Unless going after the biggest of whatever. Especially if you working with someone else. The other is learn how to read and judge our animal that you are after. Like noting a muley ear generally stick out about 22" from tip to tip. Then how much is beyound the ears on either side.