We have a pair of Embden geese that have laid 42 eggs over two seasons with only a single egg being fertile and hatching. So we have given up on geese reproduction and are now only keeping the geese as pets. We want to raise about a dozen chickens for both the eggs and their offspring's' meat. To date our geese and ganders have been pretty much bulletproof with no lice, mites, or other parasites. We're concerned about the possibility that the chickens could pick up these things and pass them on to our pet geese. Should we be concerned about this? Can chickens pass on lice and mites to geese?