One thing I noticed in the picture of the pack- look how many black ones there are. This is not normal, either.

Here's an example of a big bad black wolf made good. Not quite your typical brush wolf, red wolf or painted malamute.

They can be called in with a coyote call as well. Locating howler's etc. Woves do not allow coyotes. If a coyote comes in to the call, there are quite likley, no wolves around.

http://img.photobucket.com/albums/v638/DarylS/bigbadwolf.jpg?t=1265985495

For some reason, I can't get the picture to post. Hope the url works. It's a good representative of one of our wolves.