Laughing kookaburra Laughing kookaburra The laughing kookaburra ("Dacelo novaeguineae") is a bird in the kingfisher subfamily Halcyoninae. It is a large robust kingfisher with a whitish head and a dark eye-stripe. The upperparts are mostly dark brown but there is a mottled light-blue patch on the wing coverts. The underparts are white and the tail is barred with rufous and black. The plumage of the male and female birds is similar. The territorial call is a distinctive laugh that is often delivered by several birds at the same time, and is widely used as a stock sound effect in situations that involve
Invasive species of Australian origin coastal wattles, introduced to help bind drifting sand dunes. They remain serious pests, but some controls have been introduced. In the case of "Acacia saligna", the introduction of acacia seed weevils ("Melanterius" species) has achieved complete control. A lesser degree of control has been achieved for "Acacia cyclops" by the introduction of a gall rust fungus ("Uromycladium" species). Invasive species of Australian origin There are a number of Australian species that have become invasive when introduced into outside Australia or outside Oceania. The Australian magpie was introduced into New Zealand and are considered to be a pest because of attacks