I spotted the adult Yellow Warbler (bottom pic) fly into a section of thick vegetation and while I watched I saw her feed a fledgling. I moved my car so I could observe from inside using my car as a blind and photograph with minimal disturbance using the silent mode on my mirrorless camera.
The fledgling stayed mostly inside of the vegetation reducing opportunities for better photos but the top two pics show the plumage on this fledgling with the development of limited yellow feathering. SeEtta