In summer, about 40 per cent of a sparrowhawk's diet is fledglings. The song sparrow (Melospiza melodia) is a medium-sized New World sparrow. Diet of the House Sparrow. “Foraging Habitat and Diet of Song Sparrows (Melospiza melodia) Nesting in Farmland: a Stable Isotope Approach.” Canadian Journal of Zoology. The song sparrow’s diet varies seasonally, with insects being its primary prey in spring and summer and with seeds and fruits dominating in fall and winter. Description. Adult song sparrows have brown upperparts with dark streaks on the back and are white underneath with dark streaking and a dark … Sources. The female takes prey up to wood pigeon size, but the smaller male does not catch anything bigger than the mistle thrush. The Song Sparrow's diet is higher in seeds in the autumn and the winter, and higher in insects during the spring and the summer. Despite their label as an agricultural pest, these birds usually eat wasted seed, primarily those passed through the digestive system in livestock dung. Like other song sparrow species, the Santa Barbara Song Sparrow ate a variety of plant seeds and insects (including beetles, caterpillars, bees, ants and wasps, and flies). Among the native sparrows in North America, it is easily one of the most abundant, variable and adaptable species. Sprouting seed increases its nutritional value and is an effective way to improve your bird’s health and breeding performance. Song Sparrows may have multiple broods in a season. In spring, during the periods of nesting and rearing of young, insects increased in terms of the important components of the sparrow's diet. Preferred Foods. Most of the song sparrow’s foraging takes place on the ground, where it will scratch and kick about in leaf litter and grasses for weed seeds and insects. 2000. Foraging habitat and diet of Song Sparrows (Melospiza melodia) nesting in farmland: a stable isotope approach J. Girard, A. Baril, P. Mineau, and L. Fahrig Abstract: Agricultural intensification has been linked to declines in farmland and grassland bird populations in Europe and in North America. They'll also eat red millet. These birds are omnivores, and they eat a variety of plants and small animals, primarily invertebrates. 90 (2012): 1339-1350. Seeds make up the majority of their diet, but they also eat some insects and other invertebrates. Freshly grown green seed heads can … They employ many hunting techniques, depending on the habitat and prey. Song sparrow in coastal Marin County, California. Medium cracked corn is the best size corn for all species of sparrows' small beaks. All About Birds: Song Sparrow. A quality finch seed mix including canary seed and various millets forms the basis of the golden song sparrow’s diet. Kaufman, Ken. Girard, J. et al. Diet & Feeding. Nesting Behavior . Cornell Lab of Ornithology. White millet is the favorite bird seed of sparrows.