Silkie bantam age and gender??

[Ibabz2]

Hello! I recently got Fufu straight run from a local hatchery. His/her age wasn't known and thus I'm trying to figure out approximate age and if Fufu is a hen or roo. I've had her for 3 weeks now and she is significantly smaller than my other chicks and slightly smaller than my black cochin bantam. It this normal? Because of her size she seems to get bullied from time to time by the other chicks who are about 5 - 7 weeks old. Attached 3 photos from today and 3 from when I got her 3 weeks ago.

 

[KKVDK]

He/she looks to be around 5 or 6 weeks of age. And is MUCH to young as silkies bantams are one of the hardest breeds to sex. I can usually tell the sex by 3-4 months and I'm very experienced in this breed sexing
~Kaylie~

 

[Ibabz2]

Thanks Kaylie! The hatchery said she was 5 weeks when I got her 3 weeks ago but I didn't think so. She was the smallest though of the 20; lot of her siblings were bigger than she even is now. Will just continue to watch until she's older!