This spider is named for the cross the female weaves into the web. There are many theories about why the female does this including, strengthening the web, for camouflage, and for increasing prey catches as the cross reflects ultra-violet light which attracts insects. It may also deter predators which must go to the effort of cleaning off the extra silk after diving into the web.
The female has a silvery head with silver, yellow, red and black bands across its abdomen, and two yellow stripes running down its underside. Its legs are dark brown to black with one or two yellowish bands. The male and juveniles are brown and cream, with brown legs. It often appears to have only four legs because it sits with its legs in pairs along the stabilimentum.
Distinctive feature
The zigzag patterns (known as the stabilimentum) it weaves into its web to form an X or a cross, after which it is named.
The striped marsh frog or brown-striped frog is a common species in urban habitats It is a mostly aquatic frog native to coastal Eastern Australia.
A pale to grey-brown back with darker brown stripes. Usually also a pale stripe running down the middle of its back. Its belly is white and often flecked with brown, and there are dark spots and stripes on its limbs.
Size
4.5 - 7.5 cm
Also know as Blackthorn.
A woody shrub to small tree, usually with thorny branches. Grows up to 5 – 10 m high.
Leaves
Glabrous, dark green, 20 – 44 mm long and 5 – 9 –mm wide.
Flowers
White, 6 – 10 mm wide, fragrant.
Mostly bright green, with a blue crown, cheeks and colouring on its wings. It has red around its bill, throat and forehead, and bright red patches under each wing. The red on its throat is edged with yellow and its long, pointed tail is purple-red. The female is slightly duller, with a creamy bar under its wings.
Size
About 25 cm; ; Wingspan 32 – 36 cm
Metallic blue-black on top and light to dark grey on its breast and belly. Its forehead, throat and upper breast are rust in colour. It has grey legs and feet, and its eyes and bill are black. A young Welcome Swallow has shorter tail feathers than an adult and its forehead and throat are a creamy beige (instead of rust).
Distinctive feature
A deeply forked tail with a white band or row of spots on the long tail feathers.
Mostly light blue-grey in colour. The forehead, crown, chin and upper throat are white. It has a long, slim neck and a pointed grey-black bill. The legs are long and dull yellow in colour. Easily identifiable when seen from below with the dark flight feathers of the wing contrasting with the paler grey plumage.
Males and females are similar. When breeding, the birds have long feathers (nuptial plumes) on the head, neck and back. Young are similar in appearance to non-breeding adults, with little to no white on the face; underparts often have a reddish colour.
Distinctive feature
Its characteristic white face.
One of Australia's most widespread birds on mainland.Mostly black with a white belly and eyebrow. A young bird has paler, slightly rusty edges to its wing feathers.
Size
18 - 22 cm long (from head to tail)
