That's full of inaccuracies, like many post in this thread are. The basic idea however, is true that coyotes are not pack animals by nature. They do use pack mentality (Everyday) and in some areas their hunting practices must be adjusted for the size of game they are taking. In conditions like those described above, of severe weather and big game yarding, coyotes will come together to hunt. Hell, they'll come together for a lot less. Across the Midwest my friends and I have regularly seen (and/or called in) groups of 4-8 and family structure wasn't an issue. In fact- dispersal isn't a sure bet at all. Some leave early, some leave late and some hang out for another year... to say coyotes ALWAYS do ANYTHING is a reach.

That said; I have serious doubts the scene pictured was the result of coyote attack. Pictures of hounded coyotes rarely equate to coyote knowledge- and the whole flavor of this thread is anti-coyote so things may be getting twisted a tad.

PS: 80 pound coyotes do inhabit the Northeast. There are a handful of studies done on the DNA taken from NE coyotes that show anywhere from 50-90% matches with the resident wolves. The size of pups increased almost immediately when wolves arrived in those areas.

I saw a 72 pound coyote trapped in Indiana two years ago.