This year my flock has taken a hit, Five birds down to one now. I'm not sure if it's the feed I give them, Lay crumble. Or just the cages themselves possibly? Most of the legs had looked fine. About two birds somehow received cuts on their legs so I treated them with a livestock spray, it's purple in color. My last standing bird is a hen who has layed about 2 eggs for me ever. I'm not sure what it could be- Any tips so I can become a better parent for the flock? All my birds are in wire bottom large cages most of the time and sometimes I kept pairs in wire rabbit cages. In the winter, they have a heatlamp that turns on and turns off via thermostat.