I've been in Niles less often the last couple months and so haven't passed by this field very much and didn't realize there's some reasonable habitat there. After scanning over a series of mourning doves, the bird popped into my bins.
It was fairly distant and I spent some time trying to digi-scope it, but heat waves led to limited success. I think it's an adult based on the width of the buffiness of the scapulars and wing coverts going off Sibley.
The bird took flight with a pectoral once, flashing its white underwings as it landed.
A record pic of the 2 Baird's.
I've had Baird's in this field before (and golden plover in the field on the opposite side of the road), but I think this is the first time I've had Buff-breasted in Royalton Twp.