Have been reading about roo development. I am sure I'll have to wait a bit longer to know for sure. But I have a picture and wanted to see what others thought. Is this the start of spurs? Little raised yellow bump? Hard to see in this pic but it was the best I could do one handed.
Both males and females have spur buds, and both sexes can grow spurs. They are no indication of girl or boy. However, if the comb turns bright pink or red before 10 weeks old, odds are, it's a boy.