A Head Start for Some Redstarts

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Science  24 Dec 2004:
Vol. 306, Issue 5705, pp. 2201-2202
DOI: 10.1126/science.1107749

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Most ornithologists working in Europe, Canada, and North America arduously study breeding patterns of migratory birds, while ignoring molting, migration, and the time migratory birds spend in their southern wintering grounds. In his Perspective, Hill comments that the introduction of new techniques that measure, for example, isotope ratios in bird feathers is enabling ornithologists to analyze these long-ignored aspects of the annual life cycle of migratory birds ( Norris et al.).