Feb 19, 2015 | Featured Web Article

Backyard Tip: Crushed Eggshells Are for the Birds

Many species, including tree swallows, eat crushed eggshells both for calcium and for use as grit.
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When you make your breakfast eggs, save the eggshells! We can hear you asking: "What? Why?" The answer is they are a great addition to your bird-feeding program. Many different species eat crushed eggshells both for the calcium they provide to nesting females and for use as grit in the food-digesting process in the gizzards of seed- and insect-eating birds. Rinse out your eggshells, place them in a metal tray in an oven set at 325 degrees. Bake the shells for 20 to 30 minutes to kill off any bacteria from the domestic chickens that laid them, then crush the shells and spread them on a flat, open surface such as a sidewalk, driveway, deck railing, low roof, or patch of bare soil. Swallows, martins, sparrows, finches, bluebirds, and other backyard birds will visit this new offering.

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