What is this?

[ClaraK]

Hello! I had gotten an order of meat birds from Murray McMurray earlier this year and they had sent this black chick. As it has grown I am stumped!
It is small, lean, likes to roost high, an excellent forager, and very friendly.
I assumed it was a pullet but it started to grow in long tail feathers and silver saddle feathers.
Anyone know what this bird might be?
Any help would be greatly appreciated!

 

[MysteryChicken]

Hello! I had gotten an order of meat birds from Murray McMurray earlier this year and they had sent this black chick. As it has grown I am stumped!
It is small, lean, likes to roost high, an excellent forager, and very friendly.
I assumed it was a pullet but it started to grow in long tail feathers and silver saddle feathers.
Anyone know what this bird might be?
Any help would be greatly appreciated!
View attachment 4266398

I'm thinking one of the many types of Hatchery Easter Egger Strains, this includes Olive Eggers.

 

[JedJackson]

Probably Prairie Bluebell egger or Whiting True Blue. Both are types of Easter eggers with a lot of Leghorn in the mix.