Weather Ruins Winter Vacations

Science  16 Jun 2000:
Vol. 288, Issue 5473, pp. 1975-1976
DOI: 10.1126/science.288.5473.1975

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There has been increasing concern over the decline in many migratory bird species. As Sæther discusses in his Perspective, evidence is accumulating ( Sillett et al.) that climate change resulting from the El Niño Southern Oscillation affects both the survival rate of adult birds at tropical wintering sites and their reproductive rate at summer breeding grounds in the Northern Hemisphere.