Demonstrators protest possible detention center for migrant children at Moffett Field in Mountain View FacebookTwitterEmail 1of3 Demonstrators wore butterfly costumes during a protest at Moffett Field in Mountain View. The butterfly is often seen as a symbol of migration.Tatiana Sanchez / The ChronicleShow MoreShow Less 2of3 About 50 people demonstrated at Moffett Field in Mountain View Monday, where federal officials are considering housing unaccompanied migrant children.Tatiana Sanchez / The ChronicleShow MoreShow Less 3of3 A banner is displayed during a protest at Moffett Field in Mountain View.Tatiana Sanchez / The ChronicleShow MoreShow Less More than 50 people protested Monday afternoon at Moffett Field in Mountain View, where federal officials are considering temporarily housing unaccompanied migrant children who recently crossed the U.S.-Mexico border.