Does the cuckoo benefit from laying unusually strong eggs?

@article{Antonov2008DoesTC,
  title={Does the cuckoo benefit from laying unusually strong eggs?},
  author={A. Antonov and B. Stokke and A. Moksnes and E. R{\o}skaft},
  journal={Animal Behaviour},
  year={2008},
  volume={76},
  pages={1893-1900}
}
Brood-parasitic birds such as cuckoos and cowbirds lay eggs with unusual by strong shells. Three main hypotheses have been proposed to explain the adaptive significance of this trait. The present study focused on the puncture resistance hypothesis and tested its critical prediction that increased eggshell strength enhances the probability that the parasitic egg is accepted by the host. To address the problem, we experimentally parasitized marsh warbler, Acrocephalus palustris, nests with three… Expand
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