[midvalleybirds] Fwd: Tricolored Blackbirds at Philomath sewage-treatment ponds

clearwater at peak.org clearwater at peak.org
Wed Jan 30 05:36:37 PST 2019

Thanks to Ed McVicker for this interesting question. There's been a steady 
trickle of eBird "rare bird reports" from this site over the past several months. 
I haven't looked at all of them but I can't recall any that mentioned females 
or immatures. 

Female Tricoloreds are a little more difficult to distinguish with certainty, 
but usually they stand out from female Red-winged in mixed flocks by their 
lack of "warm" tones. 

From: ed mcv <ed.mcvicker at gmail.com> 
Date: Tue, 29 Jan 2019 21:37:00 -0800 
Subject: [obol] Philomath Blackbirds 

Earlier this week I visited Philomath sewage ponds to see the Tricolored 
Blackbird(s). Thanks to a visitor just ahead of me with a huge bag of 
seed, birds swarmed in from the brambles and trees on the south side of the 
There were 3 or 4 males with scarlet & white epaulettes but I couldn't find 
any females or immature males. I haven't seen an OBOL or ebird report of 
anything other than males. Perhaps I overlooked basic plumaged Trikes and 
I'm wondering if anyone else has identified anything other than males. It 
seems odd to me that only males would be integrated into this flock. 

Here are some photos labeled with my IDs. 

Ed McVicker 

Joel Geier 
Camp Adair area north of Corvallis 

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