Hi
The cold temperature require a mix of one third cup of sugar to one cup of distilled water in this cold weather and watch in the daytime for freezing. Bring the feeder in the evening when it is completely dark.
The most important thing is to return the feeder to the same location just before it is light in the morning, full to the top with warm sugar water. Increase the sugar if the temperature gets real low, minus 10. I kind of like the tube feeder and I place mine in a dry outside, "under porch cover location". The Wild Bird Store on Oak Street has lots of good suggestions.
I was late yesterday morning and our Anna's probably had to make a desperate energy depleting flight on to the next feeding location in the neighborhood of Dunbar .
I had a email yesterday asking "where do they go to sleep during the cold nights?" I kind of watched and observed the evening direction of flight a few years ago and found out it was a very old house 2 blocks away with what I noticed was numerous heat leaks in the roof overhang eves. That was the night time roosting place for our hummer. Annas just snuggle down and cut back on their life giving heart beats to survive the cold nights.
The key thing for their survival is that their first energy depleting flight in the morning must be to a feeder that is NOT FROZEN, to replenish their energy for a day of many visits to a few human humming bird feeders in the Dunbar area.
Yes we are dedicated" Anna's People" but it is just a little harder to throw back our warm bed blankets in the very early morning and say "Its time for our Anna's to arrive".
Terry Slack"
Please feel free to pass on this message and the Sugar to distilled water mix for Annas is very important ! !