Kaytee Midwest Regional Blend Wild Bird FoodKaytee Midwest Regional Blend Wild Bird Food attracts more backyard birds! Specially blended for cardinals, finches, chickadees, woodpeckers and buntings. The science behind this extraordinary mix is based on seed preferences and visual perception of songbirds typically found in the Midwestern United States. Our regional seed blends have been independently field tested by researchers at leading universities and proven to attract more birds than either black oil sunflower seed or other nonregional blends. Based on results of field tests of Kaytee Midwest Regional Blend Wild Bird Food against black oil sunflower seed and other, nonregional blends. Individual results will vary due to local environmental factors including bird migration and distribution, terrain, landscaping and weather.