The Collaborative International Dictionary of English v.0.48:

lowan \lowan\ n.
   The Australian moundbird (Leipoa ocellata); it incubates
   eggs naturally in sandy mounds.

   Syn: mallee fowl, mallee-fowl, leipoa, Leipoa ocellata.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

lowan
    n 1: Australian mound bird; incubates eggs naturally in sandy
         mounds [syn: mallee fowl, leipoa, lowan, Leipoa
         ocellata]