I often use clip art from openclipart.org or clker.com. These clip art are free and public domain.
I found Thanksgiving turkey on clker.com, Thanksgiving Turkey by Kara78.
I changed background with Inkscape, orange color #f26011.
Then I used Gradient tool to create a color gradient.
I also made coloring page. I changed all colors to white, except stroke paint of course, which stays black.