First time chicken owner :)

[Sultan2610]

First time chicken owner here. I have all hens here they are as listed along with some pictures

4- Blue Cochin's
3- Rhode Island Red's
1- Barred Holland
1- Barred Rock
1- Sultan

I have caught the chicken bug

 

[Sultan2610]

 

[Sultan2610]

 

[Sultan2610]

Could someone give me a rough estimate on the age of my chicks? Thanks!

 

[NaJaLeHa]

I'm totally a newbie but they look a bit younger than mine... Which are 5 weeks... So I'd guess about 3 weeks or so