AVIS-IBIS

Birds of Indian Subcontinent

Field Identification of Individual Ospreys Using Head Marking Pattern

Publication Type:Journal Article
Year of Publication:1994
Authors:Bretagnolle, V, Thibault, J-C, Dominici, J-M
Journal:The Journal of Wildlife Management
Volume:58
Issue:1
Date Published:1994
ISBN Number:0022541X
Keywords:Pandion, Pandion haliaetus, Pandionidae
Abstract:Identification of individual birds in the field is difficult, and usually requires capture and banding. With some species, capture can be impossible, harmful, or prohibited. In these cases, an alternative means of identification is warranted. We analyzed the pattern of black marks that appear on the dorsal aspect of the head in osprey (Pandion haliaetus). Variation existed among individuals, and it was possible to identify individuals because black marks were distinct in size, shape, and number. Head marks changed only slightly from year to year, which allowed individual identification in the field without disturbing birds.
URL:http://www.jstor.org/stable/3809565
Short Title:The Journal of Wildlife Management
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith