This premium food provides a good source of energy with a mix of sunflower hearts and additional pieces of red energy corn. Plus there are dried mealworms for added protein. This premium food provides a good source of energy with a mix of sunflower hearts and additional pieces of red energy corn. Plus there are dried mealworms for added protein. The seeds in this mix have been de-husked, which creates less waste and minimises the chance of weed growth. For: bird. For: blackbird, blue tit, chaffinch, coal tit, crested tit, goldfinch, great spotted woodpecker, great tit, green woodpecker, greenfinch, house sparrow, long-tailed tit, marsh tit, nuthatch, robin, siskin, starling, tree sparrow, treecreeper, willow tit, wren. For: bird tables, feeder houses, ground feeding, tube feeders.