Ostrich: Pullet or Roo?

[WildflowerJLH]

S/he is almost 7 weeks old. EE dad with a SLW mom. I think I know the answer, but I want to hear what you guys say. Some funny angled pics, but they show the feathers pretty well

 

[Mrs. Fluffy Puffy]

Roo.

I'm starting to see shiney tail feathers.

 

[punky rooster]

roo

 

[Tropical Chook]

I would also guess it's a roo.

 

[Happy Chooks]

Most definitely a boy.

 

[xyresicchick]

roo. @ 7 wks my roo's comb looked like that