Pygmy Falcon predation of nestlings of their obligate host, the Sociable Weaver

@article{Covas2004PygmyFP,
  title={Pygmy Falcon predation of nestlings of their obligate host, the Sociable Weaver},
  author={Rita Covas and Onno Huyser and Claire Doutrelant},
  journal={Ostrich},
  year={2004},
  volume={75},
  pages={325 - 326}
}
Rita Covas1,2*, Onno Huyser1,3 and Claire Doutrelant1,4 1 DST Centre of Excellence in Birds as Keys to Biodiversity Conservation at the Percy FitzPatrick Institute, University of Cape Town, Rondebosch 7701, South Africa 2 Present address: Institute of Cell, Animal and Population Biology, University of Edinburgh, King’s Buildings, West Mains Rd, EH8 9RB, Edinburgh, Scotland, United Kingdom 3 Present address: 2 River Close, Noordhoek, Cape Town, South Africa 4 Present address: CEFE–CNRS 1919 Rte… 

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References

SHOWING 1-10 OF 10 REFERENCES

Stabilizing selection on body mass in the sociable weaver Philetairus socius

Evidence is presented for strong stabilizing selection on body mass in a wild population of sociable weavers, verifying the prediction that body mass probably results from a trade–off between the risks of starvation at low mass and predation at high mass.

Woodpigeons nesting in association with hobby falcons: advantages and choice rules

Clues that would allow woodpigeons to choose the best protector may be early nesting by the hobby and its aggressiveness, which varies both between and within individuals during different nesting phases.

The Sociable Weaver, parts 1–5

  • Ostrich 44: 176–261
  • 1973

The Pygmy Falcon Polihierax Semitorquatus

Sociable Weavers — nature’s engineers

  • African Wildlife 35: 15–17
  • 1987

Pygmy Falcon population in the central Namib Desert, Namibia

  • Gabar 4: 10–13
  • 1989

The Birds of Africa, Vol

  • 1. Academic Press, London
  • 1982

Pygmy Falcon catches Sociable Weaver in flight

  • Gabar 5: 27
  • 1990

Birds of Prey of Southern Africa

  • David Philip, Cape Town Received January 2004, accepted May 2004 Editor: MD Anderson
  • 1982