Black and white, with the pattern varying across its range. The back of its neck, upper tail and shoulders (on its wings) are white in males and grey in females, and (across most of Australia) the rest of its body is black. In south-eastern, central and south-western Australia, including Tasmania, its back and rump are entirely white. Its eye is red-brown. Young birds are usually grey rather than black and have dark eyes.

Distinctive feature

One toe faces backwards and three face forwards. It has a square-tipped tail.

The caterpillar (larva) is initially pale yellow with fine hairs, before turning green. It has narrow yellow lines on its body which are sometimes hard to see. The upper side of the butterfly (adult) is white with a black tip on its forewing (front wing) and a black patch on the front edge of its hindwing. A male has one black spot on its forewing, while a female has two black spots. Looking from underneath, the forewing is white with two black spots and the hindwing is yellow.

Size

Caterpillar about 3.5 cm; Butterfly up to 5 cm wingspan.

The adult male is black with a deep-orange to yellow beak, a narrow orange to yellow ring around its eye, and dark legs. The female is grey-brown, with some streaks or mottling, and its back is darker than its belly. The female also has a paler chin than the male, a dull yellow-brown beak, dark legs, and the ring around her eye is less bright. Young birds are also brown but with lighter underparts and a dark grey or black beak.

Size

25 to 28 cm (from head to tail)

Black and white, with the pattern varying across its range. The back of its neck, upper tail and shoulders (on its wings) are white in males and grey in females, and (across most of Australia) the rest of its body is black. In south-eastern, central and south-western Australia, including Tasmania, its back and rump are entirely white. Its eye is red-brown. Young birds are usually grey rather than black and have dark eyes.

Distinctive feature

One toe faces backwards and three face forwards. It has a square-tipped tail.

The caterpillar (larva) is initially dark in colour with broad yellow-orange bands running across its body, and two rows of black spines running down its back. Its head is black and smooth. As it matures its body becomes blue-black. Just before becoming a pupa it turns dark green with orange-yellow blotches on its back and some small scattered pale blue-and-white spots. The butterfly (adult) has black wings covered with white-grey patches, and red-and-blue patches on its hindwing. The back edge of its hindwing is scalloped and the tip of its body is yellow.

Size

Caterpillar up to 4 cm long; Butterfly wingspan about 7 cm.

Bright yellow and black bands across its abdomen, with a pair of black spots and a black triangle on each yellow band. It has yellow legs, black antennae and two pairs of transparent wings. Nests are commonly built underground with only their small entrance holes visible, which are about 2 - 3 cm across.

Size

1.2 – 1.5 cm long (worker); 2 cm long (queen)

Deciduous tree, growing to 15 – 30 m high and 15 – 20 m wide. Some of its grey-brown bark peels off to reveal a creamy white inner bark, giving the trunk a mottled appearance.

Leaves

Mid-to-dark green with 3 – 5 lobes and slightly serrated edges. They are 10 – 25 cm across and turn yellow-brown in autumn. The leaf lobes are about as wide as they are long.

Flowers

Red or yellow, in small rounded clusters. The red (female) flowers grow from the newer shoots and the yellow (male) flowers grow from older branches further back toward the trunk.

The top of its head and its hindneck are black. Its forehead is covered with bright-yellow skin, which hangs down to form wattles. The rest of the head is white. Its back and wings are pale grey-brown. Below, black plumage extends from the hindneck onto the sides of its breast, and the rest of the underparts are white. Its long legs and feet are reddish and its bill is yellow. It has a prominent spur on each wing.

Juveniles are similar to adults, but have dark ‘scallop’ markings on the back and wings, and the wing spur and wattles are either smaller or absent.

Distinctive feature

A yellow wattle that extends from its forehead to behind its eye and hangs down beside its chin.

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.

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)