Male-male pair bonding, nesting and egg incubation in a wild passerine

  • Jennifer Kindel
  • Sarah Legge
  • Olga Milenkaya
  • Jeffrey R. Walters
Short Communication
  • 49 Downloads

Abstract

Examples of nesting behavior between pair-bonded males are exceedingly rare among songbirds. We observed a male same-sex pair bond that resulted in the partial development of one egg while monitoring the breeding activity of a population of wild Crimson Finches (Neochima phaeton) over four breeding seasons. This male–male pair built four nests and incubated two clutches, each with a single egg of unknown origin, with at least one developing partially before failing. This same-sex behavior is unusual among passerines and its origin and evolutionary significance remain poorly understood.

Keywords

Neochmia phaeton Crimson Finch Same sex Pair bond Social monogamy Mating system 

Zusammenfassung

Männchen-Männchen Paarbindung, Nestbau und Bebrütung bei einem wildlebenden Singvogel Beispiele von Brutverhalten von Männchen-Männchen-Paaren sind bei Singvögeln sehr selten. Während einer vierjährigen brutbiologischen Studie einer wildlebenden Population des Sonnenastrilds ((Neochima phaeton) beobachteten wir ein homosexuelles Paar, das teilweise erfolgreich ein Ei bebrütete. Dieses Männchen-Männchen-Paar baute vier Nester und bebrütete zwei Gelege mit jeweils einem Ei unbekannter Herkunft, von dem sich eines entwickelte, bevor es verloren ging. Homosexuelles Verhalten ist bei Singvögeln ungewöhnlich. Ursprung wie evolutionsbiologische Bedeutung sind wenig verstanden.

References

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Copyright information

© Dt. Ornithologen-Gesellschaft e.V. 2017

Authors and Affiliations

  1. 1.South Carolina Department of Natural ResourcesUnionUSA
  2. 2.Mornington Wildlife SanctuaryAustralian Wildlife ConservancyDerbyAustralia
  3. 3.National Environmental Science Program Threatened Species Recovery HubUniversity of QueenslandSt Lucia, QueenslandAustralia
  4. 4.Biology DepartmentYoung Harris CollegeYoung HarrisUSA
  5. 5.Department of Biological SciencesVirginia Polytechnic Institute and State UniversityBlacksburgUSA

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