They have cold, withered eyes before which every bird is unplumed.
"Thus Spake Zarathustra A Book for All and None" by Friedrich Nietzsche
Nor creep to graves, in flying west, Unplumed, dishonored, and unblest!
"The Myth of Hiawatha, and Other Oral Legends, Mythologic and Allegoric, of the North American Indians" by Henry R. Schoolcraft
For sunward flight, thou soul with unplumed vans!
"Geoffrey Hampstead" by Thomas Stinson Jarvis