At 6 months old they still squeeze under each other! I know it's not because the top lady picks their faces because she's one that wants to sit under the others! This picture is during the day, but they all do it in the evening. When I check on them later when it's pitch dark, they are no longer crowding. If you have pictures of your chickens crawling under each other, I would love if you would share! I actually found out adorable, that they want to feel.. Is it protected, or loved? Either way, I'd love to see other people's chickens do this!