I don't think the hummers are going to be fed from this feeder.
Lowest temp for December has been 18F. Those in the know says it might get lower. Zero F has been seen around the house before the weather station was installed, but nothing that low has been seen in the past ten years.
""The world is full of obvious things which nobody by any chance ever observes…""
— Arthur Conan Doyle
“The Hound of the Baskervilles”
""Mathematics...