Grey-headed Fish-Eagle (Ichthyophaga ichthyaetus)
Hawks and eagles are largish to very large, predatory, hook-billed birds with powerful talons or claws, specialized for killing and teraing up vertebrate prey. They differ from the falcons in having generally blunter, more rounded wings and paler eyes (yellow red).
Eagles and vultures are specialized for soaring on air currents and hunt largely from the air, whereas the other hawks hunt from branches, but also sometimes soar; some species even hover over intended prey. Vultures feed mostly on carrion and have long barish necks for probing into carcasses. Members of the family make very large, stick pile nests in trees or on cliifs and the young give characteristic screaming calls.
There are 34 species in the Greater Sundas, including several migrants.
Description: Large (70 cm), grey, brown, and white eagle. Adult: head and neck grey, grading to brown on breast. Wings and back dark brown; belly, thighs, and base of tail white; terminal black bar on tail. Immature: upperparts buffy brown; underparts streaked brown and white; tail light brown with dark brown terminal bar.
Iris - brown to yellow; bill and cere - grey; bare tarsus and feet - white to yellow.
Voice: A loud, harsh cry awh-awhrr.
Range: India, SE Asia, Philippines, Sulawesi, and Greater Sundas.
Distribution and status: Uncommon but widely distributed along rivers in Borneo.
Habits: Frequents lowland forested waterways, lakes, rivers, and swamp. Dives on fish while flying or from a tree perch, but rarely soars.