Any black chick experts?

[newtochickening]

Hi everyone, we recently got a Rare Standard pack from Tractor Supply (Hoover's Hatchery), which turned out really to be mostly only black chicks. Haven't noticed too many differences yet, but some seem to have darker feet and darker beaks, while others seem to have lighter feet and lighter beaks. Does anyone know which breeds these may be?

 

[newtochickening]

Another note, they seem to be much quicker and trying to jump / fly around than our ISA browns.

 

[britesidefarm]

They look like standard size and have feathered feet (from what I can tell), so I’m gonna say French Copper Marans.

 

[RubelliteRose]

I'm not a chick expert, but here is the link to the Hoover's chick id page:
https://hoovershatchery.com/id-my-chick.html