LOL! Yes tree frogs are incredibly loud! I had about 5-6 singing to each other yesterday evening in the back yard and I could hardly hear my family talking to me while out on the deck! They are really hard to find too. I have one that retires to a little ledge on the top of my shed every year.....same spot. He's so cute! I love going to sleep with my windows open so I can hear them, but sometimes, I just have to close the window 'cause they are sooooooo loud! They are pretty amazing little creatures. I think they are attracted to my backyard because I have several little water gardens. They deposit their eggs in the water. They are so sensitive to the presence of water, that if I go out to just water a few plants, they start singing! I don't know if they see the water, or just hear or smell it! Ain't nature grand? :)

Barn Swallows for sure. I responded to your other post; once Barn Swallows find a good place to nest, they tend to return. Generally taking down any existing nest will just have them build another. Is that a nest box? If so, you may have better luck removing that....but they probably will just build new.

Also, if you look at the range map in the All About Birds site, robins live year-round in most of the 48 lower states. Some people insist that we see different robins in the winter than in the summer - that we're seeing Canadian birds that migrated south and our summer robins flew even farther south. I don't know if this is true - maybe someone here has some information. Claire

Hey, those are native plants (out of focus) behind those birds :) Well, maybe they are...depending on where you are.