We too have had Summer and Scarlet Tanagers and a Baltimore Oriole. The Ruby Throated Hummingbirds get more and more abundant. They are buzzing the other birds and even a rabbit! And what about "Survival of the Fattest"? They seem to use up so much energy fighting each other, it must take them more time to bulk up. I suppose where there are natural food sources they are spread around more than the two or three (or more) feeders we provide, so they are "defending" just a few sources. Ralph and Kay Brinkhurst Lebanon, Wilson Co.