Evanger's Dog & Cat Food Co.  has opened up its  2011 Annual Calendar Photo Contest  for entries.

There will be 12 pets chosen as the pet of the month, but this year entrants will be competing for a feature spread under one of the calendar's four themes of sport exhibitors, service dogs, rescued pets and most creative pet photo.

Winners will receive their choice of Evanger's super premium canned or dry petfood.

The calendar will be available in October and be offered free at select pet stores with a purchase of an Evanger's product.