This is another one that I have had printed out for a while to paint - it just ended up at the bottom of the pile.
Weebill's are found on mainland Australia. They measure around 8 - 9 cm in length and weigh about 6 grams.
Weebill measures 2.5 x 3.5 inches and is painted on 300gsm smooth Arches watercolour paper.
Many thanks to Patrick Kavanagh for the reference photo.