Subject: [Tweeters] White winged and Red Crossbill (Type 1-4)
Date: Feb 16 12:15:57 2009
From: Khanh Tran - fsprucegrouse at yahoo.com
Hi all,
Here is a very useful link to difference in crossbill vocalizations for both White winged and Red Crossbills (Type 1-4).
There is also a description for each species or type.
http://ebird.org/content/ebird/news/introduction-to%20crossbill-vocalizations
Enjoy and hope you get out to witness the White winged Crossbills invasion in parts of Northcentral and Northeastern WA and NE Oregon.
Good birding,
Khanh Tran (Portland, Oregon)