(Casuarina obesa). At the base of the escarpment, out of the bushland, the most dominant features are the planted Morton Bay figs (Ficus macrophy) and the tall Norfolk pines (Arauccaria heterophylla). Poplars are also prominent, although these are considered a weed. In terms of botanical history, the Point Walter bushland is significant, as it was at this location early botanists first collected couch honeypot (Dryandra lindleyana) and cottonheads (Conostylis candicans). In 1839, the Cryptandra glabrata was collected at Point Walter, a species which has not been seen there since. Birdlife In the Point Walter bushland, hollows are used for nesting by galahs and Port Lincoln parrots. Carnaby's black cockatoos feed on parrot bush in the area. The area is also home to native species of frogs, small reptiles and various insects. There are also various pest animals present in the area, such as rabbits, cats, dogs and foxes. The sandbar is the nesting grounds of several bird species. They include the pied oystercatcher, the red-capped plover, the black swan and the fairy tern. The local government has made a conservation effort with the campaign "Don't buzz that bird", telling people not to get too close to them. Erosion In February 2012 the environmental consulting company Natural Area Management was contracted by the City of Melville to reverse the erosion that had occurred over the previous ten years due to the loss of beaches and grassed areas, factors aided by the undercutting of tree roots. Work began in March 2012, initial works were finished in 2013, and the project was completed in early 2014. Sandbar Point Walter is notable for the sandbar or spit that extends over into the river; sections of the sandbar are often submerged at high water. The sandbar was formed through the collection of sediment along the aeolianite band that traverses the estuary. Dreamtime relevance The sandbar is prevalent in the Dreamtime of the local Aboriginals. They believe the sandbar was the hair of the Dreamtime figure Djunda (alternatively spelt Junda), the Charnok woman, and the nearby cliffs at Blackwall Reach were her footprints. Djunda is said to have carried spirit children in her hair, who, when they fell out, formed rocks. According to Dreamtime stories, when she reached Wave Rock in Hyden, she jumped off it into the sky, at which point her hair formed the Milky Way and the spirit children formed the stars. Due