I saw this bird many times throughout the day and just as I left around 6pmish. My photos are no where as good as Alex's. There were new birds detected at the watering spot, magic tree, in the afternoon I suspected new birds moving in. The fact that the bird in question was still there may lead to finding it this morning? I will post if it's here. Also I agree with Alex's assessment of identification. I am not very familiar with this species and was unsure of its id at the time.
Bob Flores