Looting the Robin's Nest

Last summer there was a funny little finch who was obsessed with manmade stuff for his nest near my garden. He would bring pieces of kleenex, a HUGE piece of the waxed paper liner from a cookie or cracker box, etc. After the baby robins had left their nest nearby, I saw this little finch trying to snitch the one manmade item in the robin's nest--a slim little strip of paper. Unfortunately, it was woven into the nest well enough that he couldn't pull it out and had to give up. I've had it in my head to do a picture of him since then. Colored pencil, 8x10.