Decoys are not the be all, end all, but they can distract a coyote enough to allow you to make small movements bringing your rifle to bear undetected.
I almost always deploy a decoy of some sort on every stand, they are
especially effective on bobcats. Some seem to be a bit more effective than others. The Foxpro Jack Daddy looks like a bird fluttering and also has a "voice" which serves as a coaxer which often entices hung up critters to proceed even closer.
https://www.gofoxpro.com/products/decoys/jack-daddy
Every coyote is a study unto itself in the manner in which they respond to the call or decoy. As has been stated, they respond to several different motivations and in a number of different manners.
This cat eased up directly across the sendero from my call & decoy, intent upon the decoy placed about 35-40 yards from my hide, but caught my movement lifting the camera and strolled withing 5' of the decoy as he left in no hurry.
^^ On another ranch, pretty much same setup, this cat walked out of brush, heading straight for call/decoy, picked up moving my camera and slowly sat down and watched me long enough to snap 20-30 frames, got up and disappeared into the brush within a few feet of the decoy. vv
Another cat called in at same location, same setup but 6 months apart. Early winter, came out of brush, inspected decoy and went back from whence he came.^^^ This is the same cat, wearing his summer coat, coming out of same brush line as above.
2nd picture is in front of the same tree as center picture above. vvv
After checking out the decoy again, returning to his bedding area vv.
There is no always or never when it comes to calling critters. Seasons change, weather changes, hunting pressure varies, all this and more affect the outcome. Some things work some days, nothing works all the time!
Have heard lots of folks tell of their decoys being attacked by hawks and owls. Hunted w/decoys 10-12 years before a Kestrel actually hit my decoy and turned it over....unfortunately, I had slipped back to my jeep to get my camera after his first pass when he overturned it.
Did have a javelina steal the topper once and then spit it out as he retreated.
Finally, a couple of years ago, all in one day, 2 different owls on two different stands, actually stole the topper on my Jack Daddy and carried it off. Same morning, two more owls on different stands came to the call, sat in a tree and on a fence and contemplated an attack, only to lose interest and leave.
Then, the very next stand, a Harris hawk hit the topper but failed to get hold of it and flew away.
Why were the birds so strongly attracted to the decoy that day? Your guess is as good as mine!
Regards,
hps