Ok, so I got some new chickens about 2 weeks ago, but they are not laying. I know this because 1) I've never seen them in a nesting box and their vents aren't like my other chickens that are laying fine and 2) Their combs and waddles are pink to light red and not dark red like they should be. All of them have finished molting except for a few of them. The seller told me 1.5 years old, so at this age, they are still laying fine. I also know that the days are getting shorter but out of my other 9 chickens that I have laying, I have been getting 3-4 eggs a day from them. What should I do???