Rangle
Journal
Raptor Research
Volume
10
Issue
2 (Summer)
Year
1976
Pages
61-64
Section
Scientific Papers
Online Text
ABSTRACT
The historical background of the use of rangle by raptors is outlined and compared with the use of gastroliths by certain other carnivores, such as seals. Some possible functions of gastroliths are summarized. Observations of rangle stones in wild New Zealand Falcons (Falco novaeseelandiae) are described. The relevance of rangle to modern raptor management techniques is discussed.
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