Coyotes respond to the siren call for sure, however,,,(there is always however it seems), around here when the feds are flying the coyotes hot and heavy? the siren on the plane starts 'em up, the ground spotter locates them, the shooter in the plane dumps a box of shells on them and any survivors head for a hole everytime after that the plane, chopper goes over or there is a siren fired up. Soon you have a population of ADULTS that are immune to that stuff.
Then you wind up with silent 'yotes reproducing. I've been told they have gotten most all of the 'yotes here; I know better....