Spangled Kookaburra Dacelo tyro

A large kingfisher of Savanna and monsoon forest. Very thick bicolored bill, spotted head, pale underparts, dark wing with pale blue patch, pale blue rump and darker blue tail. Freezes in position for long periods, occasionally lifting its tail slowly, then flicking it quickly down. Hunts insect prey on the ground. Similar to Blue-winged Kookaburra, but Spangled Kookaburra is smaller with a spotted rather than streaked head and lacks white outer tail feathers.Often duets, with a rhythmic, repeated “gok-gok!” interspersed with a rattling trill.