Kristin

I had glass feeder up most of the winter and I have left glass feeders up other years all winter long and they never burst. Last year I used a 1:4 ratio. Now these were not full 1/3 to 2/3 rds at the most. I was concerned that they would burst, but they didnt. So even if the temps drop into the 20s I would have to say its of little concern. The only concern I have now is if hummers were to show up my mix would not be good , but Im not going to change it till they do show up or else I will just bring the feeders in.

I accidentally left one of my feeders in the freezer once and it shattered. The clay flower was fine, but the bottle broke. Then again, the bottle was completely full, so the water had no place to expand.

The coming freeze is the one thing keeping me from hanging the feeders up right now. Although it's unlikely, it would be possible for a bird to show up any day now, and it would be nice to have something for him (and I know it would almost surely be a male).

The forecast from Wednesday night on will be lows in the mid twenties until at least Saturday, and maybe beyond. Highs may only be in the 40's. Yikes! I probably should hang some feeders up just in case. Trouble is, I don't get up early enough to hang them at the crack of dawn, and I'd be afraid to leave them out all night if it got too much below freezing.

I'll just have to think about it and decide what to do.

Kristin

Im sure with a feeder full and froze , yes it would burst, mine never were full from evaparation or just not filling them full. I took down most of my feeders except one window feeder which I will keep up in case they arrive. I will change the mix once a week untill they arrive which could be another month yet. By they way we are supposed to have the same weather you just quoted in your post.