Instructions:

1. Roll a lump of clay into a small nest shape.
2. Push matchsticks, or pre-cut 2 inch lengths of willow / twigs into the sides of the clay nest.
3. Wrap string etc around willow, line the nest with feathers, wool, fluff etc – glue these into nest and leave to dry for 12-24hrs. Then add the egg!

All items, or similar, are available from Play Resource Shop & Scrapstore.