Heard this bird calling (singing?) from some dense-low bushes and wondered what it was as I was not familiar with it. Turned out to be a Large-billed Scrubwren, also present were Silvereye, Eastern Whipbird and a noisy plane. There is a Silvereye calling on the clip but it is the descending “see-see-see” (uttered twice) that is the LB Scrubwren.
I recorded the sound with the video capability of my Canon EOS DSLR. Click on blue link below to hear.