Date: 1/4/18 3:41 pm
From: Scott Olmstead <sparverius81...>
Subject: [AZNMbirds] SEAZ: Tucson Red Crossbills
Hi birders,


Red Crossbills continue to be found around Tucson, and today I was able to get a decent recording of the crossbill flock at East Lawn Palms Cemetery today. The spectrogram confirms them as Type 4 (Douglas-fir). Type 4 and Type 2 (Ponderosa Pine) seem to be the most common types that have been found around the lowlands of SEAZ this winter, but according to data submitted to eBird there have also been records of Type 3, Type 5, and Type 6. Amazing variety!


My recording of the Type 4s from today is here: http://www.xeno-canto.org/398271 For comparison, here's my recording of the Type 2 flock a few miles away at Reid Park: http://www.xeno-canto.org/396261


Recordings are essential when trying to figure out the identity of crossbills, so do remember to try to make recordings when you encounter crossbills. Even your cell phone will work!


Good birding,

Scott


---------------
Scott Olmstead
Tucson, Arizona

http://tropicalbirding.com
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