I did some midday birding yesterday (6/24) at Frontenac State Park (Goodhue Co.) and
found a singing BELL'S VIREO right behind the entrance station. Other
highlights included numerous DICKCISSELS and PURPLE MARTINS around the
station and along the Prairie Trail, a probable HENSLOW'S SPARROW
singing in the grass along the same trail, and two singing PROTHONOTARY
WARBLERS on the Sand Point Trail, just before the boardwalk becomes
submerged.