I don't know the bobcat population, however, i do know they are very sneaky and use stealth as their means of hunting. You typically will never hear a bobcat. They move slow and thats the reason we don't see that many. Coyotes on the other hand, are almost always trotting and you can hear and see them from several hundred yards away. Frequently, there will be more than one. Sightings are not a good indicator of population, although i know there are a lot more yotes than cats.