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  1. Observations sur les heures du réveil et du chant de quelques oiseaux diurnes, en mai et juin 1846 /
    By: Dureau de La Malle,
    Publication info: Paris ,1847
    Contributed by: University of Illinois Urbana Champaign
    Subjects: Birdsongs  Ducks  European cuckoo  France  Hirundo  Motacilla  Oriolus  Strix  Tetrao  Turdus  
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  2. Systematic notes on Palearctic birds. No. 25, Motacillidae, the genus Motacilla. American Museum novitates ; no. 1832
    By: Vaurie, Charles.
    Publication info: New York, N.Y. : American Museum of Natural History 1957
    Contributed by: American Museum of Natural History Library
    Subjects: Motacilla  Motacillidae  Wagtails  
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