Purple-crowned Lorikeet
Glossopsitta porphyrocephala

These small lorikeets (15-17 cm in length - similar to a House Sparrow) are found across the southern parts of Australia, reaching from half-way up the coast of WA through to the far east of Victoria, ranging from scarce to common depending on habitat. They are closely related to Little and Musk Lorikeets and like all lorikeets, they feed mainly on nectar from eucalypts and other trees, often mixing with their relatives in flocks. They are the only lorikeet native to southern WA (with Red-collared Lorikeet being found in the far north of the state), where these birds were seen.
 

1-2: Bluff Knoll Cafe, Mt Trio, WA, 29/09/2012.