I did the sides a little different on this on then I did on my 2013 version. I think I like the angled side a little better. It really happened as a mistake, so I'm glad it worked out! Here's the measurements for this owl holder. Start with an 11x4 inch piece of cardstock. On the 4 inch side score at 1 and 3. On the 11 inch side score at 2, 3, 7 and 8. Holding the cardstock with the 2 inch score line on the bottom cut up along the 1 and 3 inch score line 5 inches, then trim off those ends. After you assemble your box you'll be able to angle your sides.
Thanks for looking, see you soon!!!!