Developmental stage affects eggshell-breaking strength in two ground-nesting birds: the partridge (Alectoris rufa)

Aurora M Castilla1, Anthony Herrel, Guillém Díaz

  • 1Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales (CSIC-MEC), C/José Gutiérrez Abascal 2, Madrid, Spain. aurora@mncn.csic.es

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