Suet ball without net Suet ball without net + feeding silo – winter fatty food for wild birdsEnvironmentally and animal-friendly – without net – without added colourants – feeding silo made of PolyAl, 100% made of recycled drink containers. Checked on the presence of ambrosia seed to prevent this parasitic plant from invading your garden. Mixture of pure beef fat, cereals and seeds. Ideal for the winter season.