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Citations
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Kumlien, L. (1888). Observations on Bird Migration at Milwaukee. The Auk, 5(3), 325–328.
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Stone, W. (1906). Some Light on Night Migration. The Auk, 23(3), 249–252.
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Dutcher, W. (1884). Bird Notes from Long Island, N. Y. The Auk, 1(2), 174–179.
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Roberts, T. S. (1907). A Lapland Longspur Tragedy: Being an Account of a Great Destruction of These Birds during a Storm in Southwestern Minnesota and Northwestern Iowa in March, 1904. The Auk, 24(4), 369–377.
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Höst, P. (1942). Effect of Light on the Moults and Sequences of Plumage in the Willow Ptarmigan. The Auk, 59(3), 388–403.
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