Is it too early to tell if they are pullets or roos? Pics included :)

[TracyLK]

Sorry they are not the best quality photos or the best shots, as they were taken with my cellphone and I plan on taking more photos soon.
Buff Orphington--Layla (4 weeks)

Easter Egger Bantam--Lacey (almost 4 weeks)

Blue Cochin--Lilly (3 weeks)

Blue Cochin--Lolly (3 weeks)

Partridge Silkie--Lucy (almost 4 weeks)

Partridge Silkie--Lola (almost 4 weeks)

All of them minus the 3 news chicks I got yesterday

 

[pbjmaker]

The buff orpington looks like it is maybe a roo - the comb looks pink already. The others it is hard to tell on. Silkies are hard to sex until they are much older.

 

[pdsavage]

The buff is the only one so far that im leaning more for roo,it has a bigger pinker comb.