I got 8 roos out of the 10 'straight run' chicks I ordered. Of the 5 pullets I ordered, 4 were pullets and they snuck in 1 roo on me. My Aunt Imogene had 3 boys and her sister had 3 boys and I had 2 boys and was scared I'd have another one, so quit. The 7-year cycle thing makes sense to me...maybe, like the weather, it has something to do with sunspots, or maybe it has to do with the ratio of males to females in a given year, or even the food supply - don't know, but it's an interesting observation the old farmer has made.
