There look to be some breaches in the bird defense network.
Our contractor has finished his work until Monday. In addition to installing the towel drier, he also replaced the faucets and drain on the bidet and installed a second outdoor spigot on the back of the house. We wanted a new spigot because the existing one will be inside the new greenhouse, which is impractical for outdoor use, so a second one outside the greenhouse made sense. On Monday, he'll start the plumbing work for the new shower.
Work on the greenhouse is expected to conclude on Saturday with the installation of the glass panels. Fortunately, our weather forecast is for dry days through the weekend.