Crossbill correction: Matt Young (a crossbill vocalization guru at Cornell) reviewed my sound files and corrected the type 4 to type 2 and the type 10 to type 4. So all three Red Crossbill types (2,4,5) are expected in Colorado. The Red Crossbill vocalization learning curve is a steep one, but fun!
Nick Komar
Fort Collins
Sent: Monday, November 6, 2017 1:30:37 AM
Subject: [cobirds] Loveland rare crossbills and gulls (Larimer/)
Subject: [cobirds] Loveland rare crossbills and gulls (Larimer/)
[snip]...On Sunday, Nov 5, we returned to the area looking for crossbills. In the cemetery (just east of the lake, on the east side of US 287), we found a flock of 21 Red Crossbills. I recorded three different call types, including Type 4 (Douglas Fir), Type 5 (Lodgepole Pine), and Type 10 (Sitka Spruce). I am not aware of previous reports of Type 10 in Colorado....[snip]
Audio for the three red crossbill types has been uploaded to the Macauley Library via eBird, and also uploaded to xeno-canto.org.
Nick Komar
Fort Collins CO
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