GOLDCRESTS (REGULUS-REGULUS) HAVE AN INCL INATION COMPASS

Authors
Citation
P. Weindler, GOLDCRESTS (REGULUS-REGULUS) HAVE AN INCL INATION COMPASS, Journal fur Ornithologie, 135(4), 1994, pp. 620-622
Citations number
6
Language
TEDESCO
art.tipo
Note
Categorie Soggetti
Ornithology
Journal title
ISSN journal
0021-8375
Volume
135
Issue
4
Year of publication
1994
Pages
620 - 622
Database
ISI
SICI code
0021-8375(1994)135:4<620:G(HAII>2.0.ZU;2-0
Abstract
During autumn migration, orientation tests were performed with Goldcre sts in the morning immediately after the birds had been caught. In the local geomagnetic field (vertical component pointing downward), they showed a significant tendency towards 144 degrees SE; in a magnetic fi eld with the vertical component pointing upward, their mean was at 321 degrees NW. This response to an inversion of the vertical component r eveals that the Goldcrests used the magnetic field for orientation and that their magnetic compass is an inclination compass as it has been described for several other species of migrants.