Segregation in the African wintering ranges of English and Swiss Swallow Hirundo rustica populations: a stable isotope study

  title={Segregation in the African wintering ranges of English and Swiss Swallow Hirundo rustica populations: a stable isotope study},
  author={Karl L. Evans and Susan Waldron and Richard B. Bradbury},
  journal={Bird Study},
  pages={294 - 299}
Capsule Stable isotope analysis of Swallow feathers, grown in Africa, revealed significant differences between populations breeding in Switzerland and England. Aims To investigate the extent to which Swallow populations breeding in Switzerland and England are separated on their African wintering grounds. Methods Swallows were caught at breeding colonies, biometric measurements were taken and feathers, grown in Africa, were collected. Feathers were combusted in a Carlo Erba C/N/S analyser and… 
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  • K. Hobson
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RECENT international efforts to conserve the African elephant Loxodonta africana prompted us to seek an appropriate method for determining the area from which individual tusks were derived. Trace
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