Looks like the Gomersall book has several votes, so I'll add it to my lbrary. Thanks.

Leif

The best book I've found for bird photograph is:

The Handbook of Bird Photography 1st Edition
by Markus Varesvuo , Jari Peltomaki, Bence Mate

The authors are Finns and all the examples are European or Mediterranean, so relevant to you. Lots of explicit details as well as good stories about the challenges.