Millions of families love watching chickadees, nuthatches and woodpeckers visit backyard feeders. A joyful daily task is bringing them a day’s supply of sunflower seeds, millet, or even cracked corn. But, often an important part of their diet is ignored.
Birds lack teeth so never need dental care. Instead, they must eat rocks! Small rocks humans call sand. Often birds forage along snowy roads gleaning grit spread to give cars traction. It goes into their gizzard where powerful muscles grind seeds into a digestible slurry that then moves on to the stomach.
During most of the year, birds find all the grit they need on their own, but when snow and ice seal off the soil they can’t find it. People sometimes scatter sand on slippery spots to provide human traction. Birds will glean some of it.
It’s helpful to sprinkle a handful of sand around feeders once a week during the snowy season. At Winding Pathways, we buy a 50-pound bag of chick grit at a local store that sells chicken feed. It’s fine ground hard rock that is ideal for both traction and bird digestion but plain old sand works.
Wild Turkeys often visit our feeders, so once in a while, we toss out large-sized grit, designed for laying hens. It helps their gizzards grind up hard corn kernels that they love snacking on.
An outstanding source of bird information is the Cornell University Laboratory of Ornithology.