Erm... how accurate is hatchery sexing?

[akanalynnn]

I'm just wondering, as I bought a barred rock "pullet" and i noticed that at 3 days old, is already sporting a little comb... not sure how this works...

What are the chances she's actually a roo? She just acts different too... Struts around and does lots of flying and leg streching (which is cute), while the others don't...

 

[fullhouse]

90%

 

[fowltemptress]

Most hatchery websites claim 90% accuracy, so it is possible you have a roo.
Also, did you pick the chick up from a feed store? I've seen children putting chicks in the wrong bins as they play with the chicks, which could cause problems for future customers.

 

[ole-crone]

I normally order chicks in a batch of 25. With McMurray, if I get any males - maybe 1 (perhaps the exotic chick?). My Ideal order of 25 pullets had 2.

I think the previous 90% answer was fair. It does happen.