While searching for simple arts and crafts projects using paper I stumbled upon this on Disney's Family Fun site. (Noted below) They have lots of great projects for kids. I do a lot of kids' crafts because I'm currently a kinder arts and crafts teacher in Korea.
If you are doing this with younger kids it's best to have all the strips pre-cut to the right sizes.
I had a hard time because everything is in metric in Korea and the original directions are in standard. Most likely you might be using standard so here are the measurement you will need. However if you are using origami paper you can just use 4 instead of 5 strips for the body and tail.
Body: 5 (1-inch-wide) strips, 3, 4, 5, 6, and 7 inches long
Head: 2 (1-inch-wide) strips, 2 1/2 and 3 1/2 inches long
Tail: 5 (1 1/2-inch-wide) strips, 2, 3, 4, 5, and 6 inches long
Beak: 1 (1- by 2-inch) strip
Eyes: 1 (1- by 1 1/2-inch) strip