I trapped commercially for several years to supplement my farm income, back in the late '70s and early '80s. Fur prices were very strong back then, but the bottom fell out in the mid '80s and have never recovered from it. Most likely never will.
I've called in lot's of predators and Coyotes for over 45 years and shot many, usually singles, but some doubles.....mainly with 00 or 000 buck.
Sold lot's of hides weekly and did quite well during the 70's and 80's like Stan said, a very good gun money fund, until the anti's ruined the fur market.....
I haven't seen one yet out West that appeared cross bread with any dogs, but the Indians do speak of a rare "Coy-dog"..............
the big bottle brush tail is the Coyotes signature feature...... Here the typical Coyote runs 4 to 5 feet in length with coloring as pictured on this hide........food souces normally dictate size.......
they are fast, fleet, smart and can out maneuver any dog.......they commonly kill small dogs and all cats near residential areas...... 
Best,
