Observations on zugunruhe in spring migrating Eared Grebes.
|Abstract:||About 200 North American Eared Grebes (Podiceps
nigricollis californicus) at Tule Lake Refuge in northern
California were observed engaging in successive waves of mass
pattering and pattering flights on 25 May 2011. Most grebes
present in a part of a canal were involved in this activity.
Counts of grebes on the morning of 26 May suggest an important
portion of the Eared Grebes seen in pattering could have left
the area over night. The behavior was characterized as
zugunruhe. Directed mass pattering of Eared Grebes may
contribute to synchronization of the onward migration of the
birds involved.| Migratory birds (Research) Animal flight
(Research) |Publication:||Name: The Wilson Journal of
Ornithology Publisher: Wilson Ornithological Society Audience:
Academic Format: Magazine/Journal Subject: Biological sciences
Copyright: COPYRIGHT 2012 Wilson Ornithological Society ISSN:
1559-4491| |Issue:||Date: March, 2012 Source Volume: 124 Source
Iss