Still hoping to get some opinions on the two birds - Deer Trackers input was helpful, but I'm still not sure which bird (or both?) he's referring to when he said it was a Rio.

Please let me know what you guys think. The bird at the top of the thread looks more like a Merriam's to me, but yet not 100%, whereas the bird in the 2nd pic lower down looks like a Rio. But again, I'm the last thing from an expert, so that's why I'd like your input.