There are plenty of entries on the tracker here, just search for "Buffalo wild wings" in the nutrition tracker. Remember that wings and sauce are 2 different entries, if you just put the wings it assumes they're naked. And don't forget the incidentals like Ranch or blue cheese! Also, the in house menu has calorie counts on it so you can talk yourself out of the fried pickles pretty easily, lol.
I also found this link, but it's created by people so can't vouch for the accuracy. www.nutrition-charts.com/buffalo-wild-wing
In general, you'll want to stick with wings. Almost nothing on the menu has less than about 1000 calories (and some closer to 2000!), where as the wings are about 70 calories a piece, with sauce adding another 10-40 calories per wing. The basic mild/medium/hot sauces are lowest in calorie, and dairy based ones like Parmesan Garlic are the highest.