Don't Forget to Gather Eggs More Often than Usual
If you have cold weather chickens, some may continue to lay during the winter, and the eggs could freeze. While this doesn’t really hurt them, exactly, it IS a risk for bacterial contamination, because the frozen egg contents expand, and can create tiny hairline cracks in the shell you might not see with the naked eye. The cracks can let bacteria into the shell. Of course, at cold temperatures, the bacteria doesn’t grow very quickly, but nonetheless, keeping cracked eggs is just not a good idea.