[mou] Passerine Migration at Hawk Ridge

[David Grosshuesch]

The fall migration of songbirds jumped up a notch yesterday (Aug. 15) when 137 birds, mostly comprised of warblers (76%), were captured at Hawk Ridge in Duluth.  This is the first day of over 100+ birds for the season, which is on target with a "normal" year.  Twelve species of warblers were captured, with Nashville, Tennessee, and Chestnut-sided Warblers dominating.  Warbler species of interest included: 1 Connecticut and 2 Wilson's Warblers.  Other species of interest included: the first good push of Yellow-bellied Flycatchers, a Scarlet Tanager, and an Indigo Bunting.
 
Despite the good migration yesterday, today was another story!  Fifty percent fewer birds were captured today (61) compared to yesterday.  Although a good number of warblers were captured (just over 50%), Flycatchers contributed a greater proportion today (several Traill's and Least, but no Yellow-bellied).  A few species highlights included: 1 Philadelphia Vireo, Northern Waterthrush, and Wilson's Warbler.  
 
Given the cold front that is currently moving through the region, I'm hopeful it will cause a good surge of those "not as bad as you think" confusing fall warblers!  
 
 Dave Grosshuesch
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