Tail feather elongation in Great Skuas Stercorarius skua : a sexual ornament signalling individual quality?

• Main Authors: Schreven, Kees H. T., Sjúrður Hammer
• Format: Text
• Language: unknown
• Published: Taylor & Francis 2021
• Subjects: Neuroscience; Evolutionary Biology; FOS Biological sciences; Ecology; Developmental Biology; Faroe Islands; Skúvoy; Stercorarius skua
• Online Access: https://dx.doi.org/10.6084/m9.figshare.14061748.v1; https://tandf.figshare.com/articles/journal_contribution/Tail_feather_elongation_in_Great_Skuas_i_Stercorarius_skua_i_a_sexual_ornament_signalling_individual_quality_/14061748/1

In breeding Great Skuas Stercorarius skua on Skúvoy, Faroe Islands, central tail feather elongation was longer in males than females and was related to head size, laying date, egg volume, diet composition and, only in males, the tendency to incubate the clutch. Sexual ornaments, such as elongated ta...