Nope, this will be my first year for both! I have been to other MBGBA swaps though and they are usually good size with lots of birds and other stuff to look at.
MBGBA stands for Michigan Bird and Game Breeders Association. This is a swap meet that they host. Their swaps are normally from 6 am until noon. There are generally many breeds of chickens, chicks, quail, pheasants, ducks, geese, rabbits, peacocks, supplies and many other things. Occasionally there are bigger animals too.