A field guide to western birds: field marks of all species found in North America west of the 100th meridian, with a section on the birds of the Hawaiian Islands
The most information on all land and water birds of western North America and Hawaiian Islands.
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LibraryThing ReviewUser Review - dele2451 - LibraryThing
Contains detailed pictures/paintings, useful zone maps depicting where bird species reside, and helpful notes about unintentional strays, voice and call characteristics, etc. This book is one of the two best we have used for identifying birds during our hikes. Read full review
LibraryThing ReviewUser Review - Cygnus555 - LibraryThing
The Peterson Guide is indispensible. I am an avid birder and this is the only book I take into the field. It is littered with notes, weather, dirt and love. It is faded beyond belief! If you are looking for the best field guide to birds, this is it. Read full review