Useful reading

One or two field guides are widely used in Thailand, A Guide to the Birds of Thailand written by B. Lekagul and P. D. Round published in 1991 is very easy to use for field identification but has become very difficult to get  at the moment.

The newly published guidebook for Thailand and South-east Asia published in 2000, A Field Guide to the Birds of Thailandwritten by Craig Robson. This book has the updated information.