Originally Posted by RockBottomFarm
What's the difference between a regular Oegb and a sport?
A Sport carries 2 copies of the blue gene, as opposed to the single copy carried by a blue bird. Breeding blue X blue gives you 50% blue, 25% black, 25% sport/splash.
The benefit to breeding sports (in this case, sport X normal black brassy) is that 100% of the offspring will be blue brassy.