Observation notes: Observed on the bank of the Arkansas River in Brown's Canyon about 1/2 mile downstream from the Hecla Junction campground. Bright sunny day, no wind. Wingspan was about 1.5-2 inches wide and about 1.5 long. Feeding on asters blooming along the river.
Verified by: charleseharp
Verified date: February 16, 2018
Coordinator notes: This record represents the northern-most record in the U.S. Previously recorded in CO only in the San Luis Valley of Alamosa, Conejos, and Costilla Cos.