Cooee

Cooee! Can you hear me?

Source: tatoeba (3298187)

Then they heard in the distance the "coo-ee" of a white man, which was instantly answered by another "coo-ee".

Source: wiktionary

I call out, “Coo-ee” with long Coo and short ee like whip-bird call. Everybody in my mob know my cooee. Any one of my mob hear that, they give me cooee back. I listen. No cooee come back.

Source: wiktionary

2006, Saskia Beudel, Walking: West MacDonnell Ranges 2002, in Drusilla Modjeska, The Best Australian Essays 2006, page 309, Just as I was preparing to write in my exercise book, I heard a cooee. Cooees were not part of the code.

Source: wiktionary