This is my first time with chicks hatched from a broody. They are outside and the sparrows are eating up their food like crazy! The hens have a treadle feeder but of course the chicks don't weight enough to be able to use one. I have searched and can't find anything chicks can use that sparrows can't get to. Do I just have to feed the entire neighborhood of sparrows until mine are big enough for a treadle feeder?