Cedar Waxwings

I saw an estimated 50 - 75 Cedar Waxwings (Bombycilla cedrorum) over about a 30 to 45 minute period around 5:30 to 6:00 p.m.  Most if not all were hight in the trees.  Almost exclusively in deciduous trees (sasafras, elm, ash, etc...) not in pines.  They appeared to looping up and catching bugs similar to a flycatcher and returning to the same general area in the tree.  The Fred Alsop Tennessee Birds book confirms this was feeding.  They stayed in bunches with very few loners. I did not hear any kind of call or song.  Absolutely awesome birds.  They filled the trees.  They were about the same size as titmice.