Three filler roosters ... Breed?

[NYC2Country]

I received three filler chicks when I ordered a bunch of chicks online. Does anyone know what breed they are? They are by far the largest chickens in my flock. At 3.5 months, they are bigger than my adult Rhode Island Reds. I've tried searching for the breed, but have been unsuccessful.

 

[jamie7100]

That guy with the red on his shoulders is either an Amberlink rooster or a Red Sex link rooster. They look very similar so it probably depends on which hatchery they came from.

 

[RoostersCrow HensDeliver!]

Red Sex Link Rooster

 

[donrae]

Yep, red sex link.