Скачать или смотреть Are House Sparrows Invasive

They do not kill for food. Also, they are not a 'protected bird'…by Federal law…it's unlawful to kill our native songbirds, raptors, etc. I've often come across nesting boxes where House Sparrows killed adult Bluebirds and Tree Swallows as they sat on their eggs. ... In the past, the English Sparrow preferred urban areas.Nestlings are primarily fed insects, some of which are beneficial and some harmful to humans. Adult house sparrows compete with native, insectivorous birds. Martins and bluebirds, in particular, have been crowded out by sparrows that drive them away and destroy their eggs and young.Feed what appeals to the birds you wish to attract to your yard. Many native species enjoy black oil sunflower seeds, but house sparrows do not. Avoid foods sparrows favor, such as millet, milo, wheat, and cracked corn. Place nest boxes away from human activity and buildings (about 300 feet).