A lilac kingfisher, as pictured in the 1800s in A Monograph of the Alcedinidae, found in the Biodiversity Heritage Library.
It’s a bird from Sulawesi, an Indonesian bird, the only member of its genus. So it’s a bit of an odd bird, I suppose. Though there are two sub-species, so maybe it’s getting odder. Its call: “Very rapid “ku-ku-ku-ku”, repeated every few minutes; 3–4 descending.”
Got a bit of a look, doesn’t it? Knows something.