This report doesn't surprise me at all. Although many disagree on this forum, I find it reasonable to assume cougars could range from Canada all the way to Florida along the East Coast - most of those states have sightings or tracks, too. The topography and forests lend themselves hiding a secretive apex predator, and the deer/turkey populations are strong enough to support a few I'd think.
A good example of an increase in numbers of a large mammal -- where they were once extirpated -- is the fairly densely populated small state of Massachusetts (extremely dense in the eastern third) albeit with dense forest and 5000 natural ponds and reservoirs, has 850 to 900 moose mostly in northern part of one county!
http://www.mass.gov/eea/agencies/dfg/dfw/fish-wildlife-plants/mammals/moose-in-mass-generic.htmlUnfortunately here's what happens when you hit one with a car!
Used to live in that county in the late 60's and early 70's and never saw one. Deer were scarce then too. The population has apparently exploded in the last few decades. Now you see moose crossing signs. There were no moose crossing signs when I lived there.
Update: Here is the rest of the info on the moose and more pics. Driver escaped with just a scratch. Thank you Bob on the Mass category of Myfishfinder. http://www.smokeshowingphotography.com/p236848669
