Purple Finch

I was looking through eBird checklists and photos on the rare bird alert for Utah on 2-12-2021, and noticed photos for a "Cassin's Finch" flagged in Utah County (not sure why this species is flagged, but would have missed this amazing bird if it weren't). I looked at the first photo and it immediately caught my eye as much too contrasty for a female Cassin's. I took a closer look and the bird began to check boxes for Purple Finch field marks - and for the Eastern ssp. in particular. I contacted the individual who initially reported the bird in their backyard, and went down the following morning to get a look for myself with a handful of others. Stocky finch with long-winged, short-tailed appearance. Thick, short triangular bill. Strikingly contrasting plumage overall for a finch, especially with facial pattern and with the thick almost chocolate-colored streaking below. Very strong facial pattern, broad white supercilium and jaw stripe. Unmarked undertail coverts. Wide, crisp, dark blobby streaking on a white breast that extended into belly and flanks. No visible eye-ring/eye arcs.
(see photos)