The Wild Swans at Coole - William Butler Yeats

The Wild Swans at Coole is a collection of poems by William Butler Yeats, first published in 1917. It is also the name of a poem in that collection. The Wild Swans at Coole is in the "middle stage" of Yeats' writing and is concerned with, amongst other themes, Irish nationalism and the creation of an Irish aesthetic. (Summary by Wikipedia)