This is a Motorbike frog - it sounds exactly like a motorbike zooming, & changing gears. 
Hi all @Shaz51 @Adge @Former-Member @greenpea @cutiepiekitty @TAB @MDT and anyone else here. Fun idea for a chat Shaz!!
I really miss the treefrogs from when I lived in the territory. Up my drain pipe so their croaking really went up in volume - sometimes I'd have my tv on max volume and still not be able to hear it over their din.
When my brother was in grade 5 in Darwin he had a pet treefrog with blue spots like above. The local radio station (where we were in TAA junior flyers and sang jingles etc) had a pet competition. Bro took out several prizes including one for best costume - he made it a vest and trousers! and another for best trained pet - it sat on the back of his neck all day when at school!! and also the most unusual pet prize ... happy memories, thanks @Shaz51
Help us push aside the stigma and discrimination surrounding complex mental health and change the way people talk about, and care for, mental illness.
SANE acknowledges the Traditional Owners of Country throughout Australia and recognises the continuing connection to lands, waters and communities. We pay our respect to Aboriginal and Torres Strait Islander cultures; and to Elders past and present.
SANE values diversity. We are committed to providing a safe, culturally appropriate, and inclusive service for all people, regardless of their ethnicity, faith, disability, sexuality, or gender identity.
Help us push aside the stigma and discrimination surrounding complex mental health and change the way people talk about, and care for, mental illness.
SANE acknowledges the Traditional Owners of Country throughout Australia and recognises the continuing connection to lands, waters and communities. We pay our respect to Aboriginal and Torres Strait Islander cultures; and to Elders past and present.
SANE values diversity. We are committed to providing a safe, culturally appropriate, and inclusive service for all people, regardless of their ethnicity, faith, disability, sexuality, or gender identity.