bower bird

from The Century Dictionary.

• noun The name of the Australian oscine passerine birds of the genera Ptilonorhynchus, Chlamydodera, etc., constituting with some authors a subfamily Ptilonorhynchinæ, of the family Oriolidœ.

from the GNU version of the Collaborative International Dictionary of English.

• (Zoöl.) An Australian bird (Ptilonorhynchus violaceus or Ptilonorhynchus holosericeus), allied to the starling. The male constructs singular bowers or playhouses of twigs and decorates them with bright-colored objects to attract females; the satin bird.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A type of Australasian bird noted for building a large nest decorated with bright objects such as shells and glass.
• noun figuratively A person who collects objects for display.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun any of various birds of the Australian region whose males build ornamented structures resembling bowers in order to attract females