Your photos are so interesting, you'll get lots of comments if publish in publications on nature, the environment, photography and the like. You might start with a good pub called Weeds & Wildfowers (and I can give you names of others when you're ready to go that route).

In the meantime I found an article about our purple martins with good photos of the bird "condos" (although the author calls them bird "apartment houses"). https://www.seethesouth.com/fairhopes-purple-martin-riviera-birds/