Songbirds are strongly represented in Australia's avifauna. The cleft palate and complexly structured and muscled voice box are among the songbird's distinguishing features, the latter having developed in a manner that allows it to make various "sound notes,"which are commonly known as bird song. This beautifully illustrated stamp issue features the Green Catbird (Ailuroedus crassirostris), Noisy Scrub-bird (Atrichornis clamosus), Mangrove Golden Whistler (Pachycephala melanura) and Scarlet Honeyeater (Myzomela sanguinolenta). These species illustrate some of the diversity of the Passeriformes order, in morphology and behaviour as well as in the different areas and habitats of mainland Australia that they occupy.
Stamp and cover illustration: Christopher Pope
Cover design: Sharon Rodziewicz, Australia Post Design Studio
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