What bird so sings, yet so does wail?
Oh, 'tis the ravished nightingale.
Jug, jug, jug, jug, tereu, she cries,
And still her woes at midnight rise.
Brave prick-song! Who is't now we hear?
None but the lark so shrill and clear;
How at heaven's gates she claps her wings,
The morn not waking till she sings.
Hark, hark, with what a pretty throat
Poor robin redbreast tunes his note;
Hark how the jolly cuckoos sing
Cuckoo, to welcome in the spring,
Cuckoo, to welcome in the spring.

John Lyly

http://www.poemhunter.com/poem/what-bird-so-sings-yet-so-does-wail/