366 Days of Jack Russell Terriers 2012 Calendar. This truly stunning wall calendar will make an excellent gift, present or stocking filler idea especially for Jack Russell Terrier lovers! This large format square wall calendar features 12 months of images of this beautiful and much loved breed in double page spreads complete with large format calendar grids with a new Jack Russell Terrier illustration for each day of the month. There are no less than 366 illustrations in total inside – your sure to find a few which you’ll love through the year!