Breed?

[xish]

Bought as welbars but there were previously americanas and some remaining in the bin had greenish legs. The bin also had assorted white layers so they could also be brown leghorn. 4 chicks, two of each feather and leg color

 

[AinaWGSD]

I can see white head spots on the first two, so I don't see a reason to doubt those are wellbars. I don't have any guesses on the other two.