This is a pretty simple, straight forward craft idea that could be as elaborate and decorative as you like and could lead to more learning opportunities.
What you will need:
A large tin, thick twine or rope and bird seed. You will also need some plastic and glue to keep in place. We used an empty milk carton.
Remove both ends of the tin with a can opener (make sure there are no sharp edges sticking out). We used a tin with a lid so only one end needed to be removed. Trace a circle around the tin onto a piece of plastic. Cut the circle out and then cut in half. Glue or tape the plastic pieces to the ends of the tin to create a troff type enclosure. When the glue has dried loop a long piece of twine in through the cylinder and use it to hang from a branch. Place bird seed inside. Now wait patiently for the birds to find it...
You can decorate it as little or as much as you like and you could take photos and study the kinds of birds who visit.