That is not Wendigo that saquatch is fighting on that cover. Here's a synopsisi of that issue taken from Alphaflight.net:
The gods order Snowbird to battle Sasquatch, one of the seven great beasts.
Heather is recuperating from seeing her dead husband alive (see last iss.).
Caliber attacks Vancouver, and Alpha Flight stops him. Walter is wounded in the shoulder in process, and is then immediately attacked by Snowbird. "Get your claws out of my man," yells Aurora, but turns out it isn't Walter any more, but Tanaraq. Snowbird explains that Walter's original experiment didn't transform him Hulk-like, but opened a door to Tanaraq. Snowbird transforms herself into another Sasquatch and rips his heart out. Walter lies there, dead, and Snowbird explains the only way to save his spirit is to enter the Kingdom of the Beasts.