Cassin's Vireo, first state record for South Dakota
Near Oahe Dam, Stanley County, SD
August 23, 2015

UPDATED: November 20, 2015. The South Dakota Rare Bird Records Committee has accepted this sighting as the first state record of Cassin's Vireo.

This bird was first found by Scott Stolz.  He described it as a washed out Blue-throated Vireo, he also noted the lack of contrast on the throat and neck. Three of us (Scott, Ricky Olson, and myself) looked for it for a few hours, before I found it again and got a couple of lousy photos. We have had several people more experienced with Cassin's Vireo come to the same conclusion.

Lack of contrast between white on throat and gray sides of neck.
Yellowish tinge on flanks, breast. Small bill, overall jizz is smaller than Plumbeous.

Notice the yellowish tinge on the back and sides.