Great article but I still unsure about what I have. I have 4 longhorn, 3 of which I know are cockerel. I think the 4th one is a hen but she crows. Can you tell by the picks?
Missed a bit on feather length sexing. That should go under the sex liknked section since the fast feathering only works with crossing a fast feathering breed with a slow feathering breed with feathering being linked to a gender
I think the onky two methods missed were tail sexing and vent sexing (maybe more that I have not heard of). If you add them let me know and I will re-rate.