Such is the interest in The Birds of America it will be held in a special glass case and the pages turned just once a week.

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The reduced oxygen system will cover the archive storage areas on levels five and six, where rare items, such as Audubon's Birds of America and a Shakespeare First Folio, will be kept.

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The popularity of the pastime is reflected in the smash success of two comprehensive new field guides published this fall, The Sibley Guide to Birds and Birds of North America (see sidebar).

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Still, there's reason to think many of these will arrive soon enough: in the weeks we spent working on this review, Netflix, The New York Times, Skype, Hulu Plus, Fruit Ninja, Angry Birds, Zinio and Bank of America all went live in the store.

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The southern capuchinos are nine species of small seed-eating birds in South America (a missing "p" and a substituted "h" separating their name from that of frothy Italian coffee).

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Their Gleneagles menagerie is home to 46 trained birds, most of them Harris hawks, which originated in North America.

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The birds of prey are native to Arctic regions, including parts of Norway and North America.

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