16 species of warblers on Blue Hill & Mahnomen Trails (Sherburne NWR) this morning; 18 yesterday between Mahnomen and Pioneer Park (Princeton) yesterday. Highlights include Connecticuts, single Canada, Blackpolls & a drop dead look at a singing male Blackburnian. Still missing Cape May, Blue-winged and Wilson's among expected.
Good birding to all! Al Schirmacher Mille Lacs & Sherburne Counties

