Fighting behaviour and strategy of rock pipit, Anthus petrosus , neighbours: cooperative defence

  title={Fighting behaviour and strategy of rock pipit,
 Anthus petrosus
 , neighbours: cooperative defence},
  author={S. Thorsten Elfstr{\"o}m},
  journal={Animal Behaviour},
  • S. Elfström
  • Published 1 September 1997
  • Environmental Science
  • Animal Behaviour
Defence strategies of established, familiar rock pipit neighbours were studied in a population breeding at high density. Theoretical arguments suggest that an armistice and some form of cooperative defence should occur between familiar, territorial neighbours when an intruder tries to settle in an occupied area and owners risk losing part of their territories and renegotiating boundaries. Boundary displays were at a low and steady level after neighbours had been claiming their territories for 4… 
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