THEY WERE ALSO USED FOR RESPIRATORY PROBLEMS, U MADE UP A MIXTURE UNTIL THE WATER WAS BLACK, THEN HELD THE BIRDS HEAD IN IT FOR 3 SECONDS, AND WHEN IT CAME OUT U THOUGHT THE BIRD WAS GOING TO DIE, IT COULD'NT STAND UP BUT AFTER A FEW MINS WAS OK, IT DID CLEAR THEIR HEADS, BUT THERE IS MORE MODERN METHODS ON HAND NOW, AS FAR AS KEEPING BIRDS KLEAN THROUGH THE BATH THER IS NOTHING BETTER THAN SOME STRONG GARLIOC WATER IN IT, LET CUT GARLIC BULB STAND IN A LARGE BOTTLE OF WATER FOR A WEEK OR MORE, AND PUT IT IN UR BATH WATER, U WILL NEVER SEE ANYTHING ON UR BIRDS, AND IS GOOD FOR THEM.