Laying date variation in a Black Kite (Milvus migrans) population. Effect of beeding experience.

Full article

Published:

Volume 40(1), June 1993. Pages 55-63.

Language:

Spanish

Original title:

Variación en la fecha de puesta de una población de Milano Negro (Milvus migrans). Efecto de la experiencia de los reproductores

Keywords:

Black Kite, breeding experience, Doñana, laying date.

Abstract:

The effect of breeding experience on the laying date of Black Kites (Milvus migrans) was studied in SW Spain. The pairs with less than three years of breeding experience in the area laid later than more experienced birds. This breeding delay was related to the delayed arrival of less experienced birds to the breeding area, and to protracted nest building and pre-laying periods. These results were compared with a recent study about laying date in Spain of the Golden Eagle (Aquila chrysaetos), that had a less variable laying date, probably due to its longer breeding cycle.