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- Birds -- New Zealand -- Identification
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- Birds -- Colorado -- Identification -- Juvenile literature
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- Birds -- Juvenile literature -- Color
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- Birds -- Connecticut -- Identification
- Birds -- Sierra Nevada (Calif. and Nev.) -- Identification
- Birds -- Great Britain -- Identification
- Birds -- Chesapeake Bay (Md. and Va.) -- Identification
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- Birds -- Humor
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- Birds -- Michigan -- Identification -- Juvenile literature
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- Birds -- Sierra Nevada (Calif. and Nev.)
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- Birds -- Minnesota -- Pictorial works
- Birds -- Belize -- Identification
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- Birds -- Australia, Eastern -- Geographical distribution
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- Birds -- Arkansas -- Magazine Mountain -- Pictorial works
- Birds + Effect of water pollution on -- Fiction
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- Birds + Color -- Florida -- Everglades -- Juvenile literature
- Birds + Nests -- Fiction
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- Birds + Conservation -- United States
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- Nature + Animals + Birds
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- Birds + Migration -- Israel -- Juvenile fiction
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- Birds + Flight -- Poetry
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- Birds + Conservation -- Massachusetts
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- Birds + Religious aspects + Christianity -- Meditations
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- Birds + Eggs -- Great Britain
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- Birds + Evolution -- Hawaii
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- Birds + Religious aspects + Christianity -- Juvenile literature
- Birds + Counting -- Juvenile literature
- Birds + Eggs -- Classification
- Birds + Counting -- New York (State) -- New York
- Birds + Conservation -- North America
- Birds + Nests -- Great Britain
- Birds + Psychology -- Juvenile literature
- Birds + Religious aspects -- Dictionaries
- Birds + Conservation -- New York (State)
- Birds + Feeding and feeds -- Northeastern States -- Handbooks, manuals, etc
- Birds + Effect of human beings on -- North America
- Birds + Behavior -- United States -- Juvenile literature
- Birds + Effect of human beings on -- New York (State)
- Birds + Infancy -- Juvenile literature
- Birds + War use -- 20th century
- Birds + Protection -- Juvenile fiction
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- Birds + Migration -- Juvenile films
- Birds + Behavior -- United States
- Birds + Conservation -- California -- Los Altos Hills
- Birds + Miscellanea