Subject: RE: re quivering swallows
Date: Jun 03 09:00:00 1996
From: Tracee Geernaert - Tracee at iphc.washington.edu




>On June 1, Jerry Blinn wrote about the difference in behavior between Barn
>and Cliff Swallows while gathering mud; the wing quivering behavior by the
Cliffs.
>Jerry already mentioned the difference between gregarious Cliff Swallows
>(colony nesters) and loner Barn Swallows..
>I don't have any specific information, but would like to add the following
>thought..
>Could the wing quivering behavior have evolved as a signal to other Cliff
>Swallows? I.e. "over here for good mud!"
>Martin Muller, Seattle
>martinmuller at msn.com


Tweeters;
I'm not sure about the quivering part but the uplifted wings is apparently a
behaviour to prevent other individuals from landing and copulating while the
individual is collecting mud. This informational tidbit was obediently
copied into my notes from a Dr. Dennis P. lecture during a Master Birder
class.
Tracee Geernaert
tracee at iphc.washington.edu