Aesop's Fables (1884)
106. The Kites and the Swans.
The Kites of old time had, equally with the Swans, the privilege of song. But having heard the neigh of the horse, they were so enchanted with the sound, that they tried to imitate it; and, in trying to neigh, they forgot how to sing.
The desire for imaginary benefits often involves the loss of present blessings.
Aesop's Fables: A New Revised Version From Original Sources (translator not identified), 1884 . Illustrations by Ernest Henry Griset (1844-1907), John Tenniel (1820-1914) and Harrison Weir (1824-1906). Available online at Project Gutenberg.