In recent years, experts have discovered more far-reaching effects of vitamin D deficiency. In 2009, researchers from the University of Missouri-Columbia found that insufficient levels of vitamin D are associated with inflammation, an immune system response that can cause fluid buildup and swelling.
1 of 19 Facebook Pinterest. Feeding birds comes naturally when you grow trees and shrubs with nutritious berries. The plants you'll find in this slideshow do double duty: They attract birds and create a beautiful display with their flowers, fall colors, and fruits adding sparkle to your landscape. 2 of 19 Facebook Pinterest.
Corn is an inexpensive grain that many FeederWatchers provide for birds. Whole corn is a favorite of Wild Turkeys and ducks, while cracked corn will attract doves, quail, and sparrows. To attract these birds, try mixing cracked corn with millet and feeding a scoopful on the ground or a platform feeder.