I have a white leghorn that is a year old, consistently laid about one egg a day, but hasn’t laid in about 3 weeks. We’re in New England, she laid pretty consistently in the winter and springtime weather is starting. We have four other hens that are laying normally. Her comb is a bit white at the end, she doesn’t show signs of mites. Plenty of protein available and plenty of free range time. Any insight? thanks!