Title
Full Access Consistent differences in feeding habits between neighbouring breeding kestrels Full Access Consistent differences in feeding habits between neighbouring breeding kestrels
Author
Faculty/Department
Faculty of Sciences. Biology
Publication type
article
Publication
Leiden :Brill ,
Subject
Biology
Source (journal)
Behaviour : an international journal of comparative ethology. - Leiden, 1948, currens
Volume/pages
142(2005) :9/10 , p. 1409-1421
ISSN
0005-7959
1568-539X
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
In this study, we analysed the diet of breeding kestrels (Falco tinnunculus) in a Mediterranean area with the aim to evaluate the relative importance of both hunting area and individual feeding behaviour as factors affecting prey selection. Differently from the populations from middle and northern Europe which primarily feed on voles, the kestrels breeding in the Mediterranean region showed a wider diet composition. As expected, hunting area features influenced the diet composition and, in general, the kestrels were feeding on what was locally more abundant. However, we detected consistent differences in the diet composition between neighbouring breeding pairs which were also maintained in subsequent years. Since the neighbouring birds were sharing the same hunting grounds, the differences observed were likely to reflect individual preferences or capabilities in catching some prey type regardless of their actual availability. The presence of differences in diet composition between neighbouring pairs and their temporal consistency suggests that the hunting skills, and in general the feeding behaviour of kestrels, is likely to represent a trait characterising a behavioural type.
E-info
https://repository.uantwerpen.be/docman/iruaauth/79757a/86ddf9aa3ef.pdf