More books will come later..

The book “A beginner’s Guide to rearing Wild Birds” can be bought on most book sites and eBay.
If you are happy enough with a PDF, you can buy it for a very low price on this site: https://www.therehabberstore.co.uk/
If you are only looking for the corvid part or if you are strapped on cash, you can download only one chapter here: https://www.therehabberstore.co.uk/

A beginner’s Guide to rearing Wild Birds