Is this BO roo?

[ChickenCat]

This guy (I'm assuming it's a roo) is huge compared to his sibling chicks. He was born Feb.13. I only had 4 BOs make it out of the shipment and 9 BAs.

Look at the length of his legs!

Do you think he's not buff orp and has some other breed mixed in? All of the hens around him were born same time. He's starting to get spur nubbies, hasn't crowed yet and loves to pinch me from behind.

We've had several discussions already about his behaviour.
I'm just curious about his rapid growth, he's larger than my year old hens and closing in on my year old rooster.

 

[PhlyinPheBee]

I am going to say roo. Look at those legs!!! I think that he is going to be a big fella!

 

[ChickenCat]

I'm also pretty sure he's a roo, starting to get spur buds now and his saddle feathers are coming. I'm comparing him to the 3 other BO I have. What has me so puzzled is his size! The birds around him in the second picture are the exact same age as he is. And his legs are so long and big. Do buff orpingtons roos get that much larger than black astralorps?

 

[speckledhen]

Yes, it's a boy, but not because of the spur buds-both sexes have those. I see shiny saddle feathers hanging off his back.