Smallest sex link/autosexing breeds?

[Fishkeeper]

What are the smallest sexable-at-birth chickens that I'm likely to be able to find for sale?

 

[Roo5]

Sexlinks Black or red usually always in tsc during spring

 

[Fishkeeper]

Aren't they a pretty average-sized bird, though? Is there anything on the smaller side?

 

[Roo5]

Yeah their pretty average sized, but they aren’t huge.And idk of anything smaller then them that’s can be sexed by color Unforutently.

 

[ColtHandorf]

It would be fairly easy I think to make some auto-sexing breeds by crossing various colors of OEGB. Silver and Gold Sebrights may actually produce a sex-link as well. And Crele OEGB are sexable at hatch. @nicalandia do you have any suggestions for making a small sexable chicken?