I too have noted appearances of one eagle perched on the melalucca trees west of the nest on Pines Blvd. There are been several appearances near 6:00 P.M. toward sunset.
Monday morning, 9/20, I saw both eagles perched in the maleluecas. As one flew off, it appeared to have broken off a rather thick branch. It flew with it a short distance before dropping it. I wasn't able to see if there was any other attempt to carry materials, but it did seem to fly toward the nest.