I'm interested in OC warbler singing patterns as will as singing behavior
of other migrants. Does anyone know of any literature dealing with the
changes in singing behavior pre and post nesting? It seems to me that
song variation in OC Warbs happens more in late spring. More offbeat
songs now (eg. pitch rising at the end of song) than soon after arrival
when most songs are classic.
Diane Richardson richd at amtsgi.bc.ca


Diane Richardson EMaDiane Richardson; EMail: richd at island.amtsgi.bc.ca ;
King Rd., Salt Spring Island, BC V8K IW9