Kookaburra larger group known as "kingfishers", kookaburras are not closely associated with water. The genus "Dacelo" was introduced by the English zoologist William Elford Leach in 1815. The type species is the laughing kookaburra. The name "Dacelo" is an anagram of "Alcedo", the Latin word for a kingfisher. A molecular study published in 2017 found that the genus "Dacelo", as currently defined, is paraphyletic. The shovel-billed kookaburra in the monotypic genus "Clytoceyx" sits within "Dacelo". Four species of kookaburra can be found in Australia, New Guinea, and the Aru Islands. Kookaburras are sexually dimorphic. This is noticeable in the blue-winged and
Red wattlebird a horizontal "appeasement posture" side-on to the aggressor in which it lowers its head, flutters its wings and edges closer to the other bird. As well as smaller bird species, red wattlebirds can mob and chase larger species such as the Australian magpie ("Gymnorhina tibicen"), butcherbirds and currawongs, the black-faced cuckooshrike ("Coracina novaehollandiae"), the olive-backed oriole ("Oriolus sagittatus"), crows and ravens, the laughing kookaburra ("Dacelo novaeguineae") and even small raptors like the collared sparrowhawk ("Accipiter cirrocephalus"). The red wattlebird breeds throughout its range, with nesting taking place between July and December, though occasionally outside these months if conditions are favourable.