
I've only ever heard it at Night, between the times of 1am-3am and occasionally earlier at about 10pm
I have never been able to capture the sound as is very short, and often only One sound is made!
I can only write it as: "Eow!" and it is high pitched
It calls out with gaps of a couple of seconds, but sometimes it makes this sound Once and then i do not hear it again.
I have checked nzbirdsonline.org.nz and checked through many many recordings and can not find Anything similar, I have emailed the website to ask for help. I've searched all over the internet and Nothing. Suggestions made were Banded Rail & Long Tailed Cuckoo but these sounds are far far different to what i am hearing!
I have been hearing it for over a year now and i just can not discover what it is and its driving me crazy

Any help would be great! Cheers