Cassin’s Sparrows are not present as far north as the Pawnee Grasslands every summer. They are present this year. I have heard a few along Weld CR37 north of CR114 (usually west of CR37 between 114 and the Central Plains Experimental Range HQ). No doubt they are other places on the Pawnee National Grasslands but this is one spot that seems reliable. Brewer’s Sparrows are present in this same area.
Dave Leatherman
Fort Collins
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