The Blue-winged Kookaburra is a large kingfisher with a big square head and a long bill. It has a distinctive pale eye. The head is off-white with brown streaks, the shoulders are sky blue and it has a uniform blue rump.The throat is plain white and the underparts are white with faint scalloped orange-brown bars.The back is mid brown. Males have a dark blue tail while females' tails are barred red-brown or blackish. Otherwise the sexes are similar. The legs and feet are grey and the bill is dark above and yellowish below. Juveniles have paler streaks on the head with darker mottlings. There is slight geographical variation with plumage more buff in north-western Australia (race clifoni). The Blue-winged Kookaburra is also known as the Barking or Howling Jackass or Leach's Kookaburra. As they are shy and often quiet in the foliage they may be overlooked.