My SLW Pullet and Cockerel I bought from a young man off of Craig's List, he got them from a breeder.
I love them, they are so beautiful. I plan to attempt to hatch some eggs in the spring. They are about 6 months old now.
At almost 3 weeks, one of my 3 wyandottes is developing a small comb with more of a pronounced tail...is "it" likely to be a roo, after having bought female sexed chicks?!!!
You have a 1 in 10 chance, i'm not sure how that math works out with 3 chickens, odds are tricky, but its does sound suspicious; however there are differences in combs and feathers within breeds depending on lineage.
Your best bet is always to post pics, so we can really argue about what sex they are.
Oh and GAhen thats a very cute kitty & chicken pic