I put a heat lamp bulb next to my feeder one particularly
cold winter (the juice was freezing up every 30 min or so).
It was supporting three birds.

Mark Oberle wrote:
>
> With the cold nights coming the next few days, I am going to bring my
> feeder in every night and put it out in the AM for the Anna's Hummingbirds.
> Dale Herter suggested a light bulb next to the feeder in severe cold to
> keep the water from freezing.
> Mark Oberle
> 2006 23 Ave. East
> Seattle, WA 98112-2936
> Tel/fax: 206-324-3844
> oberle at mindspring.com
> http://www.mindspring.com/~oberle/puertorico-birds.htm

--
Mike Patterson Alas, to wear the mantle of Galileo,
Astoria, OR it is not enough to be persecuted
celata at pacifier.com by an unkind establishment,
you must also be right.
---Robert Park
http://www.pacifier.com/~mpatters/bird/bird.html