BTW, I don't want to hijack this post, but while this picture really looks like a "house cat" and that the proof above is hard to contest, there is definitely a cougar presence in the East, at least in Qc and NB. I am in contact with Mrs Helene Jolicoeur, Biologist from MNR Qc, responsible of the fur animals and great predators files (I do supply her with coyote / wolf DNA and measurments for further studies by the MNR).
Here's what came out of my discussions with her; they istalled "rubbing poles" in different locations (Qc, NB) to catch some "cat hair" for further DNA tracking. From the 120 samples they collected, 10 were positively identified as cougars. 8 in Qc (1 from Saguenay-Lac-St-Jean, 1 in Quebec City area, 2 in Gaspesie, 3 in Eastern Townships and 1 in Abitibi-Temiscamingue) and 2 in NB (Fundy National Park). Now, that's where things goes funny; 4 cougars had North-American DNA, 4 had South-America's sub-species DNA (found in Qc and NB...) and two where too damaged to make it clear (DNA loss).
There was also one killed in the late '80's in Abitibi-Temiscamingue and this one too, was from one of the South-American subspecies (from Chile).
What come out from this is that there have been some of these cats wich have been released in the wild after the laws changed (in the '70s, and then again in the late '90s). The searchers believe they were often released in couples, by illegal "breeders". That is because they can't track South-American DNA in the US and Western Canadian populations (it is almost impossible that one or many cougars have travelled all across the two subcontinents (south and NA) without leaving DNA evidences of their travel) .
Then, for the North-American subspecies, there is no way for now to determine if those found in the east were really from the eastern cougar (Puma Concolor Cougar) subspecies, because there is no DNA of the possible subspecies availlable for now to make it clear. And also because the Eastern cougar is now believed to have been a land-locked "common" cougar, so the DNA sdifference might have been very little.
But one thing is sure; the cougar is present in the East, but it's tought to be in (very) small quantity. Now they have to determine if this presence is due to the expansion of the Western population in the East or is this from a continuous subtile residual presence.....