This would account for the reduction in feed consumption.Yes. They are also molting.
Some hens go off thier feed when moulting so that is one possibility,
as one can see from this poll.
https://www.backyardchickens.com/th...off-their-usual-feed-when-they-moult.1498056/
While the hens are not laying they may eat around a third less feed, some maybe even less I've found.