Red-billed Leiothrix? Sleeping Giant, Kaua'i, Hawai'i (1 Viewer)

While hiking the Sleeping Giant summit on the east side of Kaua'i, I caught a flash of a look at a small bird with a distinctive and defined yellow throat - no photos but got a recording of what I believe is a Red-billed Leiothrix. eBird reports indicate that they've been seen in recent years on Kaua'i, though some of my book material says otherwise about their presence on the island.

Would love some input from Asian birders familiar with this song - and distinguishing it from Hwamei or other related species that are also introduced in Hawai'i. The bird I saw was far too small for a Hwamei / Greater Necklaced Laughingthrush. Apologies for the poor recording quality - the bird was continually repeating this type of phrasing, not as varied as Hwamei songs I heard while on the island, nor on recordings I've reviewed.

It's very difficult to tell because the recording seems to consist mostly of footsteps.

But where I live in Japan we have (at one particular location near my house) a place where RBL is the main bird (descended from escapees).

And your recording doesn't sound like this to me. Here's an example. There are some Japanese Bush Warblers and a couple of other species in the background, but I think you can distinguish the main sound.

The original recording sounds like a Hwamei to me, it seems a bit too high and unstructured for the Leiothrix. I don't know whether there are similar-sounding birds on Hawai'i that also need consideration though.

Thanks guys - I was comparing it to a few videos online, unfortunately due to pet bird collectors, Xeno-Canto has restricted the songs online for listening.

My bird sounded a lot like this guy: https://www.youtube.com/watch?v=4C_HdH9uR30