Bewick's Wren fledglings

Wrens seem to be early nesters. Just a few weeks ago I saw my the first House Wrens that had returned to the Fremont Co area and one was already carrying nesting material. Today I was walking on my friend's farm when I heard several birds making a scolding call and found there were several Bewick's Wren fledglings in a tree.

The Birds of North America online states that fledglings look like adults except for mottling on throat, breast and belly. Mottling on the throat and upper breast are clearly seen in this pic. This bird also still shows some of the yellowish gape that nestlings have so they probably fledged recently though it looks like a whitish line in this pic.
SeEtta