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Life History of the Boucard Tinamou in British Honduras. Part I: Distribution and General Behavior
D. A. Lancaster

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Metabolism and Heat Loss during Flight in Pigeons
Oliver P. Pearson

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Life History of the Scaly-breasted Hummingbird
Alexander F. Skutch

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Absence of a Refractory Period in the Common Weaver Bird
J. P. Thapliyal and R. N. Saxena

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The Shield Color and Relationships of Certain Andean Coots
Frank B. Gill

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Energetic Relationships of a Very Small Passerine Bird
R. C. Laisewski, S. H. Hubbard, and W. R. Moberly

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A Review of the Avifauna of the Tres Marias Islands, Nayarit, Mexico
P. R. Grant and I. Mct. Cowan

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Ecological Interactions of the Chestnut-backed Chickadee Following a Range Extension
Richard B. Root

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New Occurrences and Recent Distributional Records of Korean Birds
Chester M. Fennell and Ben F. King

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Notes and News
The Condor

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Back Matter (PDF)
The Condor

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Front Matter (PDF)
The Condor

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Common Egret Preys on Meadowlark
R. E. Genelly

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Interspecific Relations of Crows and Red-shouldered Hawks in Mobbing Behavior
Lawrence Kilkam

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Ruffed Grouse Nesting in Utah
Robert L. Phillips

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A Peruvian Race of Spinus Crassirostris
William G. George

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Distribution and Status of the Wied Crested Flycatcher in the Lower Colorado River Valley
Richard C. Banks and R. Guy Mccaskie