Crazy bird, first identifiable shot of one for me!
Two individuals in photo, so I included a clearer picture of background bird as a second photo. This was a large flock of longspurs, but very difficult to count.
2 Smith’s Longspurs were originally found during the FTW X-mas Bird Count on the 18th by @brentano and two others. Two days later was with two very experienced birders and saw the birds flush and heard the distinctive rattling call. Was very overcast was able to manage a single usable pic showing buffy underside and can just make out the white tail edge feathers. I’ll add the original heavily cropped pic and a cleaned-up version. Also posted to eBird.