Siracusa, July 15 - A group of 63 migrants left on the Sicilian shore by traffickers near the city of Siracusa overnight Sunday knocked on residents' doors asking for assistance. Most of the migrants waited for police and coast guards, though several tried to flee before authorities arrived, police said. All 63 were taken to a migrant center for identification. Thousands of migrants flood toward Europe across the Strait of Sicily each summer as warm weather brings calmer seas, and the islands of Lampedusa, Pantelleria and Malta provide stepping stones to the continent. Many come from Northern Africa looking for jobs, but also from further south and other parts of the globe.