Do keeping baby chicks in a cage to long interfer with their growth ? I noticed alot of the pictures of the 8 and 10 week old teens LOOK ALOT bigger than my 12 - 14 week olds. we were really delayed in building the coop and run for them DUE to ALL the rain we got , and just NOW releasing them in coop and run
What breeds do you have? Large fowl or bantams? Some chickens are naturally smaller than others. As an example the buttercups look bantam sized next to a buff orpington.
do you mean "stunting growth"? i had to click this thread just to see what it was about! photos can be misleading, especially with things like size, which is strongly influenced by photographic perspective. as long as they're happy and healthy, i wouldn't worry too much about size discrepancies. your chicks come from different breeding stock, have been cared for slightly differently, etc.