The Adult Yodlers can be quite agressive during the mating season where he shall roam the mountains emitting a very strange sound. If disturbed he may charge with his Alp horn which may cause severe injuries. If you meet one of these creatures and hear there cry. Start by applying a damp cloth on your ears. It must be tight enough to block of the sound. If you are charged, through a piece of swiss cheese in the opposite direction as a diversion and run for your life. Swiss cheese can be found in all swiis pharmacies and cheese shops.