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Title: So-so, pretty circumscribed
Review: I saw a pair of American avocets in Death Valley in March, 2006. With the help of a ranger at Furnace Creek, I was able to identify them from a National Geographic guide.Are they in this guide? Even though Death Valley is part of their normal flyover range? No.And that's exactly why this -- and other Audubon guides, from my experience -- just fall short in many ways compared to National Geographic or Peterson.Now, it's true, you'll get more depth of coverage in the species that are actually covered. But, whether birds, trees, or shrubs, if the lifeform isn't pictured or described, all the "depth of coverage" in the world does you no good.
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