I went back today and was able to relocate the bird from yesterday and its sibling. They were in the same general area as  mentioned and where i saw them yesterday .I watched the male feeding and staying with the one fledgling for about 20 minutes.   I also observed a lone fledgling and watched it for 15-20 minutes by itself until the male reappeared. so at least in the afternoon it was dividing its time between the young. They were about 40 meters or so apart but both inconspicuous unless the adult was present.

The fledgling I observed did engage in some probing for possible food items and appeared to be successful on one occasion.