Well we heard that as well so I went along to the health shop and bought a bottle for ours and when I was buying it I said to the shopkeeper what it was for and she said that there was another guy came into the shop and bought it faithfully every year for his pigeons, so it must be right enough, we are going to try it in the new year. Maybe we should give them some now cause it could even be good for them when they are going through the moult.