Canoeing down the St. Croix River today between the Franconia Landing in
southern Chisago County and the Log House Landing in northern Washington
County, I counted 7 singing Prothonotary Warblers on the Minnesota side of
the river. Most notably, 4 of these individuals were in Chisago County,
Interesting that the bird sings both versions. While it can't change its
Blue-winged voice, it presumably could learn both song versions from being
exposed to both. Given that its current habitat has a scarcity of Goldens,
maybe he can change his tune to maximize the chance of attracting a mate
I’ve refound this bird, it’s been following me (or me it) between markers
12 and 21. (though never getting as far west as 21). Interesting that 21 is
not on the park website map—but it’s between 12 and the road. It sings both
the typical Blue-winged and golden-winged songs but in a just-slightly
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