I just went to my letter box and whilst there heard a bird call that I thought in tone and timing passably similar to a DY Koel. Fortunately the source was easy to get close to and find and see what was making the sound. It was clearly
a young Olive-backed Oriole. By shape, brown back, very heavily striped front and long brown (not orange) beak. So I thought worth pointing out as a sound that could lead someone astray into thinking of a young Koel if not followed up on. Then it made different
sounds by making a rapid repetition and was almost like the alarm call of White-plumed Honeyeaters. It appeared to be alone and soon flew off.
Of course adult Olive-backed Orioles are very good mimics but I am not suggesting that was what was happening.
Philip
