Question Author
Thanks so much for all your answers.
ummmm - we are going to organise a family picture for him.
hundreddolla - he has got the DVD set, and books etc (big Attenborough fan!)
rowanwitch - great idea but he has lots of different feeders, and a wildlife-friendly garden which he has put years of effort into.
NoMercy - his poor old wife carrys the wine to him in buckets so no need for a hip flask!
monty - he is already a member of the rspb but I could look into other local wildlife charities for him to subscribe to maybe?