What are harmful:
Sparrows are pest birds. They eat cherries, grapes, cherries, raspberries, strawberries, gooseberries. They come to the garden in search of shadberry, currant, honeysuckle. They peck at sea-buckthorn, mountain ash, viburnum, hawthorn, and in the garden - peas, beans. On roses, birds tear off large petals to build nests.