Bird Watchers, what is a good field guide?

And I am looking for a good song bird field guide for outside of North America.
I am still searching for a bird from one of my previous questions, http://answers.yahoo.com/question/index;_ylt=AqpwCwRDSPiaKJYpF8LwsXrsy6IX;_ylv=3?qid=20090526220248AARRN3F
By “what is” I mean could you suggest a good field guide, I know what it IS.
Thank you.

I found a website that lists several good song bird field guides for outside of North America. There’s the Birds of Europe with North Africa and The Middle East, The Pocket Guide to the Birds of Britian and North-West Europe, A Field Guide to the Birds of Mexico and Adjacent Areas: Belize, Guatamala, and El Salvador.

Here is a link:

http://gorp.away.com/gorp/activity/birding/fieldguides6.htm

There’s also a Field Guide to the Song Birds of South America: The Passerines by Robert S. Ridgely and Guy Tudor. They sell this book on Amazon.com.

Also, there a Field Guide to the Birds of Southeast Asia by Ben F. King, Martin Woodcock, and Edward C. Dickinson. They sell this book on Amazon.com.

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