Blue-winged kookaburra highly aggressive in the first week of life, and the youngest chick is often killed by the older chicks during this period. Once fledged, juvenile birds need to be taught how to hunt by their parents for a further 6–10 weeks before they can properly fend for themselves. The red goshawk and rufous owl prey upon the blue-winged kookaburra. Adult birds are also slow flyers and vulnerable to being hit by cars on country roads. Nests are susceptible to raids by Olive Pythons, quolls and goannas. Blue-winged kookaburra The blue-winged kookaburra ("Dacelo leachii") is a large species of kingfisher native
Southern South American Migratory Grassland Bird Species Memorandum of Understanding a Party to CMS, signed the next day. Bolivia was the last of the range States to sign the MoU on 23 September 2009. Signatories to the Southern South American Migratory Grassland Bird Species MoU: In addition, the CMS Secretariat also signed the MoU (26 August 2007). The grasslands of Argentina, Bolivia, Brazil, Paraguay and Uruguay in southern South America represent important habitat to numerous migratory bird species. These birds play vital roles in the ecosystem by dispersing seeds and controlling insect populations. According to the IUCN the global conservation status of many South American grassland species is alarming. The