Lately my flock has nearly doubled their food intake. A five pound feeder tube (home made pipe feeder) lasted them 3 days. Normally this would last them 6 to 7 days. This change happened when the weather got cold. (below freezing) Is this normal? I wuld think so, because they need to generate more heat for their bodies and thus need more food. I am just trying to get some confirmation or some imput form people on the site.