Now as I stood there watching, I saw many multiples of the birds that normally come to visit daily. There is now a chickadee family. There are some 7 total Northern Cardinals. There are several Wrens, Nuthatches, and Titmouse. The pictures of the birds feeding were taken one after the other in about 5 minutes.
Again, there may be more total birds of a species coming in to feed, but my point is that I am finally seeing multiple birds of the same species at the same time. I had always suspected it, but I am finally seeing it.