The Australasian Osprey (Pandion haliaetus cristatus) occurs over a broad tropical region between New Caledonia in the South Pacific Ocean, through Australia and New Guinea to central Indonesia (Poole 1989, 1994, Coates and Bishop 1997) and north to the southern Philippines (Prevost 1983). It is one of the nonmigratory subspecies populations recognized, along with: P. h. ridgwayi (the Caribbean Osprey) in the West Indies, P. h. haliaetus (the Palearctic Osprey) in the Mediterranean region and on islands off northwest Africa, and the P. h. carolinensis (the North American Osprey) subpopulations in Mexico and southern Florida (although recent satellite-tracking of adults among the latter has revealed that some migrate to South America post-breeding; Martell et al. 2004, Poole 2009), among the otherwise mainly migratory populations of the northern hemisphere.
The Australasian Osprey is the only Pandion subspecies with its primary distribution...