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    • Mate choice and immunocompetence in ostriches (Struthio camelus) 

      Bonato, Maud (Stellenbosch : University of Stellenbosch, 2009-03)
      Females of many bird species prefer to mate with males exhibiting elaborate ornamentation, which serves as an indicator of male quality. Such ornaments, called secondary sexual traits, could act as signals to females ...