I found a singing male Black-throated Blue Warbler yesterday, June 17, at Hartley Field in Duluth.
To reach this location: from the jct of Arrowhead Rd and Woodland Ave, go W on Arrowhead to the first stoplight at Hartley Rd; turn right on Hartley Rd and follow it as it curves left and dead-ends at the entrance to the Hartley Field ski trails; walk about 400 yards on the main trail (i.e., the old road) and listen along the right side of the trail. This is the first time I have ever seen a Black-throated Blue during the breeding season in Duluth, or in St Louis Co for that matter, although I am aware that Dave Grosshuesch found one a few years ago in the county several miles northeast of Duluth. - Kim Eckert
