Yeah, I'd agree, they look like they are in their third week.
About the tail feathers not growing in. We have one of our Barred Rocks (4 1/2 weeks) who still has just a stubby little tail. Some of her secondary flight feathers are a bit strawy and she has a little thin spot on each 'shoulder' but she is totally fine and holds her own with five other chicks (3 BR and 3 RIR). Sometimes their feathers just come late or different I have gathered. Nothing to fret over.
About the tail feathers not growing in. We have one of our Barred Rocks (4 1/2 weeks) who still has just a stubby little tail. Some of her secondary flight feathers are a bit strawy and she has a little thin spot on each 'shoulder' but she is totally fine and holds her own with five other chicks (3 BR and 3 RIR). Sometimes their feathers just come late or different I have gathered. Nothing to fret over.