Thoughts on gender?

[KM2H]

I have now 3 younger chicks left after Mr. Fox passed by. I have absolutely zero knowledge about this gender of these birdies. They hatched on Aug 5th, it was a surprise hatch. The owner thinks they might be a mix of buff orpington, olive egger but I think she also has silkies.
I think the two bigger ones, which I'm attaching pictures of may be roos judging by the feathers on the tail but again I'm clueless. Any guesses?
The last picture is of what I think is a little female chick.

Thank you in advance for any ideas.

 

[TheOddOneOut]

Two males, one female

 

[cherrynberry]

I have now 3 younger chicks left after Mr. Fox passed by. I have absolutely zero knowledge about this gender of these birdies. They hatched on Aug 5th, it was a surprise hatch. The owner thinks they might be a mix of buff orpington, olive egger but I think she also has silkies.
I think the two bigger ones, which I'm attaching pictures of may be roos judging by the feathers on the tail but again I'm clueless. Any guesses?
The last picture is of what I think is a little female chick.

Thank you in advance for any ideas.

You are spot on!

 

[KM2H]

Two males, one female

My thoughts as well...

 

[KM2H]

You are spot on!

Thank you but I so wanted to be wrong I love the boys but I already have one rooster and what it seems like is going to be 7 hens,