the angat and ipo dams and the la mesa watershed are the main fresh water sources for metro manila. informal settlers and deforestation pose the greatest threat to this important resource.
most of the birding is done on bangka (not the best platforms for observation with optics!) and 2 reasons i keep joining this activity are 2 species which are almost guarantees: the grey-headed fish eagles and the indigo-banded kingfishers.
grey-headed fish eagles are considered rare in the philippines. they were lifers for me when i visited the agusan marsh a couple of years back. in ipo dam they are regularly sighted perched on the tall trees by the riverbank, undisturbed by birders in bangkas going crazy with excitement at the sight of them. (do you suppose they regard our ministrations as odd?).
grey-headed fish eagles are often sighted perched by the river
a female indigo banded kingfisher showing off its iridescent plumage