Mock Courtship Display by Female Ring-Necked Pheasants von Whittle, Charles L.

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The Francis Foster Sanctuary von Whittle, Charles L.

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The Role of the Snake Skin von Whittle, Charles L.

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On the Nature of the Relationship Existing among Land Birds during Sustained Aerial Migration von Whittle, Charles L.

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Note on the Nesting Habits of the Tree Swallow von Whittle, Charles L.

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Domestic Affairs of Spizella p. passerina von Whittle, Charles L.

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Some Aspects of the Group Habit among Birds von Whittle, Charles L.

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Additional Data regarding the Famous Arnold Arboretum Mockingbird von Whittle, Charles L.

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A Myrtle Warbler Invasion von Whittle, Charles L.

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Miscellaneous Bird Notes from Montana von Whittle, Charles L.

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Sociable Water Ouzels von Whittle, Charles L.

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An Estimate of the Sex Ratio of the Rose-Breasted Grosbeak (Hedymeles ludovicianus) with Comments on the Species von Whittle, Charles L.

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A Study of Hummingbird Behavior during a Nesting Season von Whittle, Charles L.

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ARE NESTING TERRITORIES ALWAYS AVAILABLE FOR RETURNING JUVENILE SONG SPARROWS? von Whittle, Charles L.

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RECENT SONG SPARROW WEIGHINGS von Whittle, Charles L.

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Additional Purple Finch Returning Ratios von Whittle, Charles L.

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TREE SPARROWS RETURNING RATIOS von WHITTLE, CHARLES L.

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ON THE MEANING OF THE WINTER-TIME YELLOW PATCHES ON ADULT MALE AMERICAN GOLDFINCHES von WHITTLE, CHARLES L.

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A Plea for More Bird-Weighers von Whittle, Charles L.

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PURPLE FINCH AND CATBIRD RETURNING RATIOS von WHITTLE, CHARLES L.

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