you guys thinking about trying to call coyotes need to get out and try. The coyote population across the eastern plains is very robust this year. I started the year by killing six on one stand and in the last two days I did 18 stands and called in 21 coyotes, killed 18 of them. They are worth a little money in the round, so you don't have to skin them to sell them and you can expect around $30./ea. average. You can shoot them, put them in a bag and freeze them and sell them frozen. That's how I do it. There is still some mange, of the 18 I shot, 5 had mange from one degree to the other.
Get out there and try. There's never been a better time, IMO.