Seems different parts of the country and they have somewhat different habits. In the South West they tend to pack together in the fall, driest part of the year. Best guess is this years pups are nearly grown and the hunting pack grows. And they may eat anything they can kill. The size of the pack seems to fluctuate with the seasons.

How they sort out their territory is anybodies guess, It may depend on the abundance (or lack of) Rodents and other food sources.

May have been a territorial thing, may have also been a really hungry Yote, may have been curiosity.

One thing I forgot, they have a thing about poop. I've found spots with hundreds of dried scats and two dozen fresh scats. Best guess is it was a territorial marker. The Yote may have been drawn in because of Dog scat, just checking out the neighbors.