I have a handmade fawn bleater made by an old native guy down in Wrangell. It's extremely effective on Blacktails and with a "distress" cry you can make a deer poke his head out of the brush from quite a distance away.
As Art relates, you have to be careful with such calls because you don't know what else it might bring in. One of the first times I used this call was on Amook Island, a smallish island densely covered with alder brush. I got up on a big hillside looking over a lot of brush and began bleating a distress cry to see if I could make a deer show itself. Next to me was a brushy ravine perhaps ten feet in depth running straight up and down the hill and I heard something picking itself down the ravine towards me from the top of the hill.
I was actually in a clearing but the ravine was so choked with growth I couldn't see up it, so I layed down my rifle and dug out a .45 expecting to get a shot from 6 or 8 feet away when the "deer" showed istelf.
And of course, it wasn't a deer, it was a brown bear sow looking at me from just a few feet away. I asked her to leave and she just turned around and walked away. It happened so fast and she behaved so well that I didn't even have time to get scared.
Just a minute or two later a forkhorn appeared below me and I shot him and was out of there. Later, when I was telling my friends what had happened they thought I was "stretching" how close the bear had been because I was so matter of fact about it. A weird deal, she just got right up to me, looked at me when I spoke and then just walked away without any reaction at all. I wish all bears were like that.
I'm more careful about where I use my fawn bleater now.