Thank you - i will definitely try the library for ideas - i hadn't even thought to look there as we wanted to buy him his own book.
I know nothing about breeding budgies, but my husband used to breed them when he was a child (starting at about 7 until his mid-teens) and he will be hands on with his son through the process, but we just wanted to get him his own book as he has expressed a keen interest...... i'm sorry if you guys think he's too young........