Female bagots are hard to come by I believe. Only time I have seen any is at rare breed parks.
I did think Bobby our billy was one (or a cross). He has the big curved back horns, and it was his colouring, with the mainly white back end, which made me think. He is small and as wide as he is high, and has long hair!! But we now think he is definitely pygmy, as the two kids so far off him are pygmy sized.