It's a PBS video, Nature:Meet the Coy-wolf.
Netflix has it and you can download it for $5 from Amazon or watch it for free if you're a Prime member.
The animals depicted look just like the ones I've seen wandering around in neighborhoods in Loudoun County, Virginia, and a big boy I spotted on a road on the West bank of the Shenandoah River in Clarke County. That one might have gone fifty pounds. I wouldn't want to encounter a group of ones like him unarmed.
Thanks for the tip. I'll see if I can find it.
