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Experiments on Winter Territoriality of the American Kestrel, "Falco Sparverius"
Vol 67, Iss 1, Page 5
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An Apparatus for Measuring Kinetics in Avian Skulls
Vol 67, Iss 1, Page 18
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The Hairy Woodpecker in Central America
Vol 67, Iss 1, Page 25
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Comments on Some Recent Studies of Song Bird Phylogeny
Vol 67, Iss 1, Page 33
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Observations on the Summer Tanager in Northeastern Kansas
Vol 67, Iss 1, Page 45
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A Study of Purple Finch Winter Weights
Vol 67, Iss 1, Page 55
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Records of Swainson's Warbler in Southern Illinois
Vol 67, Iss 1, Page 60
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Ornithological News
Vol 67, Iss 1, Page 67
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A Guide to Bird Finding West of the Mississippi by Olin Sewall Pettingill, Jr
Vol 67, Iss 1, Page 69
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Great Curassow
Vol 67, Iss 2, Page 75
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Variation in Relative Heart Size of Certain Passerines with Increase in Altitude
Vol 67, Iss 2, Page 78
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A Nesting Study of the Little Blue Heron in Eastern Arkansas
Vol 67, Iss 2, Page 84
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Artificial Incubation of Some Non-Galliform Eggs
Vol 67, Iss 2, Page 100
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Summer Activities of the Lapland Longspur on Baffin Island
Vol 67, Iss 2, Page 110
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Behavioral Mimicry in the Titmice (Paridae) and Certain Other Birds
Vol 67, Iss 2, Page 128
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A Possible Case of Polymorphism in the Lead-Colored Bush-Tit
Vol 67, Iss 2, Page 133
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Letter to the Editor
Vol 67, Iss 2, Page 144
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Auditory and Visual Mechanisms in Food-Finding Behavior of the Herring Gull
Vol 67, Iss 3, Page 155
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Observations on the Autumn Migration of Blue Geese
Vol 67, Iss 3, Page 171
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Some Aspects of the Kinetics in the Jaws of Birds
Vol 67, Iss 3, Page 175
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Winter Roosts of Marsh Hawks and Short-Eared Owls in Central Missouri
Vol 67, Iss 3, Page 189
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Notes on the Molts and Plumages of the Sparrow Hawk
Vol 67, Iss 3, Page 194
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Notes on Field Identification and Comparative Behavior of Shrikes in Winter
Vol 67, Iss 3, Page 200
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A New Race of Olivaceous Woodcreeper from México
Vol 67, Iss 3, Page 209
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Spring Molt of the Harris Sparrow
Vol 67, Iss 3, Page 213
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Proceedings of the Thirty-Sixth Annual Meeting
Vol 67, Iss 3, Page 216
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Constitution and Bylaws of the Wilson Ornithological Society
Vol 67, Iss 3, Page 224
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Birds of the World: Their Life and Habits by Paul Barruel
Vol 67, Iss 3, Page 227
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The Breeding Cycle in the Bank Swallow
Vol 67, Iss 4, Page 235
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Sex and Age Ratios of Some Japanese Birds
Vol 67, Iss 4, Page 287
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The Summer Schedule of the Eastern Willet in Georgia
Vol 67, Iss 4, Page 291
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The Auxiliary Barrel
Vol 67, Iss 4, Page 297
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Editorial
Vol 67, Iss 4, Page 307
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Ornithological News
Vol 67, Iss 4, Page 309
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Waterfowl Conservation in the Decade following World War II
Vol 67, Iss 4, Page 310