Poo changed on grass

[MKetter]

Since the young chickens have been out on grass, their poo has become dark brown and very smelly. (Not every single one, but a lot.) Is this normal? I’m new to chickens.

 

[D Uccle Uncle]

Since the young chickens have been out on grass, their poo has become dark brown and very smelly. (Not every single one, but a lot.) Is this normal? I’m new to chickens.

Most likely you're looking at cecal poop piles.

Normal, assuming that their activity level and behavior is also baseline.