My bantam cochin, is acting very strange. she is laying eggs in this upside down box she has found in the coop. there is a whole in the top of it and she can get in there and lay her eggs. she getts off the eggs and if any other birds go by she throws a huge fit and attacks them. she sets from time to time but still roosts under the heat lamp at night. I thought that they did not set on there own eggs? before they usualy get a stock pile of eggs then sit on everyones. she is a beautefull black/blue cochin with some frizle in her parent line so her chciks would be so cute....should I leave her eggs? it has been below freezing here over night.