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Journal für Ornithologie

, Volume 134, Issue 3, pp 335–337 | Cite as

Natural adoption of fledglings by Spanish Imperial EaglesAquila adalberti

  • Miguel Ferrer
Kurze Mitteilungen

Summary

From 1986 to 1989 two adoptions in Spanish Emperial Eagle were recorded involving 5.5 % of the fledglings. The results of blood analyses show that values of the adopted fledglings were not the highest for variables indicative of chronic malnutrition. Both adoptions involved nests nearest to one another. These observations support the view that adoptions result from the unusual proximity between nests.

Keywords

Animal Ecology Blood Analyse Chronic Malnutrition Natural Adoption 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Zusammenfassung

1986–1989 wurden während der „Bettelflugperiode” beim Spanischen Kaiseradler in Südpanien zwei Adoptionen beobachtet, die 5,5 % der flüggen Jungvögel betrafen. Blutanalysen legen nahe, daß die adoptierten Jungen nicht extrem unterernährt waren. Da beide Adoptioen zwischen den am nächsten stehenden Nestern stattfanden, ist zu vermuten, daß sie als Folge extrem niedriger Nestentfernungen zustande kamen.

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Copyright information

© Verlag der Deutschen Ornithologen-Gesellschaft 1993

Authors and Affiliations

  • Miguel Ferrer
    • 1
  1. 1.Estación Biológica de Doñana, CSIC, Avd. Maria Luisa, Pabellón del PerúSevillaSpain

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