Abstract
C. J. PENNYCUICK1 has advanced a new hypothesis of Sun navigation in birds. The bird is supposed to measure the Sun's altitude and the rate of change of altitude and to compare these quantities with the respective memorized conditions at home.
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References
J. Exp. Biol., 37, 573 (1960).
Schmidt-Koenig, K., Z. f. Tierpsychol., 15, 301 (1958).
Schmidt-Koenig, K., Science, 131, 826 (1960).
Schmidt-Koenig, K., Cold Spring Harbor Symposia, 25, 389 (1961).
Schmidt-Koenig, K., Z. f. Tierpsychol. (in the press).
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SCHMIDT-KOENIG, K. Sun Navigation in Birds?. Nature 190, 1025–1026 (1961). https://doi.org/10.1038/1901025b0
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DOI: https://doi.org/10.1038/1901025b0
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