Sex‐differences in nest defence in Fieldfares Turdus pilaris in relation to their size and physical condition

@inproceedings{Hogstad2005SexdifferencesIN,
  title={Sex‐differences in nest defence in Fieldfares Turdus pilaris in relation to their size and physical condition},
  author={Olav Hogstad},
  year={2005}
}
The nest defence of solitary-breeding Fieldfares Turdus pilaris against a human intruder, a corvid and a hawk was studied in a mountain birch forest in central Norway in 1990-2002. Females defended their nests against a human intruder more vigorously than did males before hatching, and vice versa after hatching. Although both sexes increased their nest defence, only males showed a significant increase and showed a greater defence than females at the chick stage. Females with 1-week-old… CONTINUE READING

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