I have a flock of five chickens. Three are approaching five years old. My typical feeding schedule is to give them a couple cups of dry crumble (Layena) in their hanging feeder which they have free choice. During the molt I started feeding them moistened Feather Fixer, about a cup in a small bowl. They ate that for a couple months until the molt was finished. Then I continued giving them moistened crumble every morning. Sometimes they ate it, sometimes not. Then when this latest cold spell happened, the moistened feed froze so they didn’t eat that but they also didn’t eat their dry crumbles. This worries me because I read that they should eat more when cold but mine are not. They are not laying and not active because they have been confined due to the weather. I throw them sunflower seeds , about 1/4 cup in the morning and they eat those. They don’t like oatmeal. Any thoughts on how I can get them to eat??