I found these owl graphics at Grandstand Graphics in the Feathers and Wings section. I did tweak some a bit by adding a hat, etc.
I can only share my blank calendar for anyone who wants to use it, but if you decide to use the Grandstand Graphics, before you enter please read the welcome introduction. This will tell you the rules to go by for using those graphics. They are for personal use only! No selling or making money from the use of these graphics. Please abide by these rules to keep this great graphic site free for everyone.
If you want my blank calendar to add your own graphics, right click to save a copy to your computer. The calendar is 8.50 x 11 inches and the resolution is at 100%.
As always, click on the image to enlarge.