Hawk Eagle

Nisaetus limnaeetus

Beak

—

Feet

—

Crest

Has a crest

Resident. Base of Himalayas, NE India, Andamans and Bangladesh. D Wings are slightly narrower a ndmore parallel - edged, compared with Mountain Hawk Eagle, and has proportionately longer ta il. Soars with wings held flat (except in display, when both wings and tail raised). Best told from Mountain by lack of prominent crest, paler sides to head, boldly streaked underparts (with any barring confined to flanks. thighs and vent). and narrower dark tail barring. Occurs as dark morph when confusable with Black Eagle; best told by structural differences, greyish underside to tail with diffuse dark terminal band, and extensive greyish bases to underside of flight feathers which contrast with darker underwing-coverts and wing-tips. Juvenile has pale fringes to upperparts (so me with largely white forewing), pale buff underparts and underwing-coverts, and narrower and more numerous tail - bands than adult. Difficult to tell from juvenile Mountain but has paler head and lacks crest. Has pale crescent across the outer primaries, lacking in Mountain. S. I. andamanenslsof the Andamans is much smaller; some with pale, faintly barred thighs and vent. Habits similar to Crested ' s. Occurs in evergreen and moist - deciduous forest.