Anything in front of the person will look relatively larger than reality. That's true for fish, deer or wolves.
However, it looks to be about the same size as a full-body mount I saw in a gunstore in Detroit in 1963, so, yeah, allowing for the camera deal, it's about right.
According to a bunch of buzz here at and at THR wolf threads, a big male at around 150 is not rare.
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