Diatomaceous earth as wormer

[Jazzman]

Five days ago I sprinkled diatomacious earth on my birds feed, and repeated again the next day. Today while scrapping the floor I noticed some poops were looser and upon inspection could actually see a small worm, dull white, maybe 32nd inch diameter, curled into a circle. I'm new to pigeons and have had my 5 birds for 6 months now and this is the first time I've tried worming this way. I'm trying to stay away from the chemicals if possible, and wonder if this can be a viable means of control, and if so, how often do I need to do this. Also, has anyone had success dusting birds with diatomacious earth, and how would one go about doing this. Tnx for your input, I'm learning a lot reading these posts.