White-winged Triller

The white-winged triller (Lalage tricolor) is one of the smaller members of the cuckooshrike family, Campephagidae. It is found throughout mainland Australia and possibly on the islands to the north, including New Guinea and eastern Indonesia. It is resident or nomadic over the warmer part of its range (inland Australia and points north), and a summer breeding migrant to the cooler southern parts of Australia. White-winged trillers are fairly common in woodland, and open scrub through most of their range, and close to riverbeds in the central arid zone. The conspicuous male bird—black above and white below in breeding plumage—trills cheerfully through much of the day during the breeding season (mid-spring to early summer), frequently rising on fluttering wings in song flight. The female is similarly patterned but in dull fawns and white. Wikipedia →

10–20% of wildlife watchers report a White-winged Triller sighting in Kakadu National Park, based on 163 days of visitor records from GBIF citizen-science data.