The other butterfly I took a picture of is a Brisbane local, known as the Common Australian Crow - Euploea core. It is in the same family as the Blue Tiger, Nymphalidae. Whilst the Blue Tiger feeds on vines, the Crow feeds on plants, such as Oleander, that are poisonous to birds and mammals as a form of self-defence!
The local Mount Gravatt Environment Group has a campaign to promote pollinators in gardens via a 'Pollinator link', lots of info about how to attract butterfiles and other pollinators to your garden can be found on their website and in their information leaflet available for download. Its a lovely idea - 'wildlife corridors for urban spaces', connecting habitat islands like Mount Gravatt with other nature reserves in the city and encouraging insect pollinators into people's gardens.