Often, angled wing shows black wrist patch. Perches on snags or rocks near water. Will hover then plunge feet-first for fish. Large stick nests built in dead trees and man-made structures and platforms. Along rivers, lakes, and coasts.
Mating system is monogamous.
Courting pair in swift pursuit flight, soar, circle, dodge with rapid turns and quick swoops. Constructed of sticks, sod, cow dung, seaweed, rubbish, etc. Perennial, becoming very large. Both sexes help with nest construction. Female incubates with some help from male.