I have six different breeds (and varieties) and they each grew at a different pace. And even among the same breed, there was a noticable difference in individuals.
At that young age, every day makes a significant difference in development. Take two chicks: one is 5 days old, and one is 4...
I love, love, LOVE my Barred Rockds! The are friendly, curious, and social - not one complaint.
Two months ago I bought 30 more chicks - including two Buff Orpingtons. I must say - I'm loving the BO's too! They are (overall) a tiny bit quieter than the BR's but seem just as friendly and...