This is one of my new favorite lessons! I found this idea on another blog and tried it out with Kindergarten this past winter. We looked at different images of cardinals and discussed what shapes we saw. Students began by painting a brown branch across their paper. they then painted a circle above the branch with a triangle on top and a trapezoid (or triangle with its point cut off) below the branch. They used white paint to add snow on top of the branch and in the sky. The next week we added faces by cutting out and gluing on a small orange triangle beak. They drew two dots for eyes, one on each side of the triangle. I'll try to find a closeup. These came out really beautiful!