Developed by cjs ornithologists, our feeder guardian enables you to safely offer our complete range of high-energy fat balls, peanut cake squares, and peanut cake tubes. Its design allows easy dismantling for filling and cleaning. You can hang it, mount it on a pole, or use it freestanding. The feeder guardian can hold up to 10 fat balls, two peanut cake squares, or one peanut cake tube 500ml or 1 litre . As the uk's foremost wildlife care specialists, we understand the ongoing challenge our customers face in keeping squirrels and larger birds away from bird feeders. Our guardian cages and squirrel-proof feeders are expertly designed to allow smaller birds to feed undisturbed, protecting against larger species that may otherwise steal food or damage feeders. For: bird. For: house sparrow, blackbird, great tit, blue tit, robin, wren, chaffinch, starling, nuthatch, treecreeper, coal tit, long-tailed tit, willow tit, marsh tit, tree sparrow.