There are three different bird feeders you can make with your grown-up ... the RSPB have more activities on their Kids website.

Our homemade fat ball bird feeder is fun and easy to make with kids. Fat balls make excellent winter food for birds. With this pine cone design, you won't need a separate fat ball holder. Keep watch ...

which can make birds sick. Also, avoid creating sharp edges or points on the feeder that may potentially hurt the birds. I ...