I am very new to chickens and have had my trio since they were 10 wks old. They currently get wet chick mash which they can help themselves to all day, but generally are out free ranging and prefer the things they dig up in the garden. Sometimes very little of their feed is eaten. They like some of my kitchen scraps, but can be fussy. Their combs and still quite small and pink and in the last week or so have been making the familiar hen noise rather than cheeping. Should i change them over to a layers feed or just carry on with their chick feed? Any advice gratefully received!