The starlings are gregarious birds, mainly in winter. Forman great bands that roam looking for food, for peri-urban and agricultural areas. Olives, cherries, invertebrates are their main food source. By late afternoon, looking for safety and warmth, invade walks and parks, creating discomfort for their noises. The next morning, the area overnight, appears full of excrement and smells danger slip and a large dirt.
From SOMA sl, this problem attacking the “roosting” systems sounds that scare the birds addresses. Moreover, this strategy is reinforced by night work falconry, raptor flight at dusk, zapping permanently starlings.