Earlier today Casper had a tumble in his cage because he was expecting a perch to be longer than it was. He seemed OK at the time but later we noticed blood drips all over the place and a pulled out blood feather. It was a new tail feather. He has blood on his beak so presumably it was causing him distress and had to go.
We got the cornflower and cotton bud kit and wrapped his top half in a towel. It was very hard to see where the injury was because of all the other plumage on a wriggling bird so I just dabbed the cornflower all over the bloody area and hoped that some of it got to the source.
Casper is now confined to barracks and has settled down for a sleep because he is bored.
We will monitor him and the cage tray for new blood and hopefully he will be all right because it is a public holiday today and the vet is shut.

So... is there a better way of getting the cornflower where it is needed, perhaps a puffer of some sort? Or is there a surgical spray that can be used?