How about this Standard Cochin hen or Roo

[TheReidHomestead]

The other one is still hard to tell, but I would say it has a higher probability of being a boy. Does it have any wattles? Are they bigger than your blue girl? That comb does look like its just starting to pinken up, but not sure.

 

[Kharmel]

Here is my 4wk old, definitely a roo, bantam Cochin for comparison. He already has a bright red comb and wattles.

 

[Cackling Hen]

Oh Thank you Wow he does have Big red comb ad wattles