It was carrying something in its talons which it seems to have deposited in the nest. It did not seem to eat whatever it was it had carried in but instead busied itself with looking around for about 3 minutes before flying off. Taking off was easy with the strong wind rushing past. A quick hop and a few flaps of its almost 2m wings allowed it to coast away with the wind.
There is probably a young chick deep in the nest which needed the food brought in by the adult birds.
Both adult birds seem (i can't tell which is which) to take turns with bringing food at least once every hour. Somtimes however, the adult may just fly past with the food without bringing it to the nest. It will roost elsewhere nearby and occasionally fly past still holding on to the food. Perhaps it is waiting to see if the resident chick is in need of more food.(?)
Update : 02Jan2012 - having observed the nest for a longer period, there does NOT seem to be a chick in the nest. The adults bringing food back to the nest could just be a 'habit' of bringing food home perhaps to share with its mate.
White-Bellied Sea Eagle
time observed : about 11.45am
location : Pasir Ris
Read more about this magnificent bird :
http://www.naturia.per.sg/buloh/birds/Haliaeetus_leucogaster.htm
http://en.wikipedia.org/wiki/White-bellied_Sea_Eagle
http://infopedia.nl.sg/articles/SIP_579_2005-01-05.html
http://singaporebirds.net/npassers_04/white-bellied_sea_eagle.html
http://www.iucnredlist.org/apps/redlist/details/106003359/0
http://www.nss.org.sg/report/f494524f-1SingaporeRaptorReportJan11.pdf
http://www.besgroup.org/2010/01/09/white-bellied-sea-eagles-catch-sea-snakes/
http://besgroup.blogspot.com/2006/05/white-bellied-fish-eagle-fishing-rat.html
http://besgroup.blogspot.com/2006/09/white-bellied-sea-eagle-not-just.html
http://www.ecologyasia.com/verts/birds/raptors.htm
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