During a morning owl survey in Wild River State Park today, I heard a first-of-year Henslow’s Sparrow calling in the Park. The bird was singing at 6:00 a.m. in the very frosty prairie (28 degrees). This is only 1 day early from the earliest arrival over the previous 5 years that I have monitored the HESPs in Wild River State Park.
Rubin Stenseng
Volunteer, Wild River State Park
Chisago County, Minnesota
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