O, singer in brown!
O, bird o' th' morn!
O, heart of delight
In th' deep o' th' thorn!

Glad is thy song
Thou joy o' th' morn,
Thou palpitant throat
In the heart o' th' thorn!

Thy song of the nest,
O, sweet o' th' morn!
A nest and an egg
In the thick o' th' thorn.

Dame Mary Gilmore

http://www.poemhunter.com/poem/o-singer-in-brown/