Red sexlink gender

[cmom]

Not a Sex-Link, male. The 2 white birds are the Sex-Link males and the others are females from a project I was doing.

 

[Jjdesmo11]

If it's only 6 or 7 weeks old then it is a male. I would guess the breed as being New Hampshire Red.

I’m wrong I guess it’s closer to 10 weeks

 

[Frazzemrat1]

that's a poor quality buff orpington cockerel.

 

[cmom]

It could be a Buff Orpington. When my young Buff Orpingtons were that young they looked very much like the one of the OP. They filled out as they got older. Looks more like a BO than a NHR to me.
http://www.feathersite.com/Poultry/BRKPoultryPage.html#Chickens
https://www.mypetchicken.com/catalog/Standards-Large-Fowl-c47.aspx?page=1