Hens or Roos?

[maine-chick207]

Everyone's favorite spring-time game of... Hens or Roos!?

I was lead to believe I had two Salmon Favorelle chicks which I am fairly sure are actually Blue Salmon roos (one is on the far left)...
How about the other 2?

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[SilverBirds]

The one with the red on the left is a cockerel. Other two are pullets. Where did you get them?

 

[JedJackson]

The one on the left is a cockerel. The dark blue one is looking like a pullet so far. Can't really see enough of the lighter blue one to tell much.