Okay, I have a new entry for the "Worst Photo You've Uploaded to iNat" topic on the forum, but I swear on a stack of Sibley and Peterson Field Guides that this is a Horned Lark. My camera chose this moment to decide that the light was too low, and promptly went tharn.
I have since added to my camera gear a keychain-sized LED flashlight with matte-textured "invisible" tape on the lens.