user: Question: What is every species when Afinsa is 639?
Columns: ['Year', 'Date', 'Type', 'Species', 'Author Species', 'Value', 'Afinsa', 'Scott', 'Mitchell', 'Yvert', 'Sta. & Gib.', 'Order', 'Family']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'real', 'text', 'real', 'text', 'real', 'text', 'text']
Sample row: [1984.0, '(21.09)', 'NOR', 'Halcyon smyrnensis Alcedo atthis', '(Linnaeus, 1758) (Linnaeus, 1758)', '30a', 496.0, '494', 495.0, '522', 592.0, 'Coraciiformes', 'Halcyonidae Alcedinidae']
SQL:

assistant: SELECT "Species" FROM "Table" WHERE "Afinsa" = 639.0;