Search Result for "nester": 
Wordnet 3.0

NOUN (2)

1. someone who settles lawfully on government land with the intent to acquire title to it;
[syn: squatter, homesteader, nester]

2. a bird that has built (or is building) a nest; 



WordNet (r) 3.0 (2006):

nester
    n 1: someone who settles lawfully on government land with the
         intent to acquire title to it [syn: squatter,
         homesteader, nester]
    2: a bird that has built (or is building) a nest