and more melodious with tail cocked very high. Here I believe It to be 
a soliciting posture for the bird being "proposed" to often shows great 
interest (3 occasions). Once I watched a bird proposing to another - 
the second bird moved next to the proposing bird; then a third bird 
landed on the roost driving both birds away. 
Best Building: Birds were seen to gather twigs and dried weed stems 
from other trees, other nests, and once from the ground. One bird 
•sms seen to bring a stick across the channel from Mnku Morn to the 
MckapuuPoint. Birds actively rob untended or deserted nests of materials 
and often Individuals move from club roost to club roost robbing several 
different nests. Uhen pairs of birds have gggs, a gathering bird brings 
a twig to the sitting bird who takes it with much vocalising of the same 
reedy voice as in the other displays. A bird coming to the nest with 
a twig often announces his airrival 50-100 7 before arriving (3-5 seconds 
before alighting) with a continuous call. The arrival continues to 
call even after the twig is given to the sitter. In 49 minutes I 
watched a bird bring 4 sticks to the sitter - 3 were immediately put 
into the nest by the sitter, one was dropped, lodging sows 18 " below 
the nest. The arriving bird lanediately retrieved It and presented it 
again to the sitter who then incorporated the twig successfully into 
the nest. In pairs with eggs the bringing of sticks to the completed 
nest may function to keep the pair bond strong and to insure the pre¬ 
sence of a high incubation drive in both birds. Several single birds 
were seen to carry the same stick to and from a nest sight a number 
of times. One bird flew about with the same stick 11 times in 46 
