arite kipper sounds like you have got the young bird sikness there mate iv i was you keep them in for a few days give them a light feed for a few days iv you can get some nystan mix it on the seed for at least 5 days after the 3 rd day start giving them a bit ov extra food keep on ading the nystan 2 the food on the 5 day give them a good feed should do the trik iv they have got the yb sikness