I find this very interesting - just the thought that people are wandering around on Tai Mo Shan in the very early hours of the morning fascinates me!!!
More seriously, you're obviously doing a very detailed survey - and I hope that the results will be made available to us all. You state that the high density of Brownish-flanked Bush Warblers is concentrated in the upper part of Tai Shing Stream. Do you have any details of numbers?? I mean, based on your survey, how many BFBW are actually holding territory on Tai Mo Shan?
It seems to me a possibility that if BFBW is establishing itself as a breeding bird on Tai Mo Shan in significant numbers, then the likelihood of Asian Lesser Cuckoo breeding in HK could (possibly) increase proportionally. (However, I'm fully aware that the term "significant" is open to varied interpretation.)
Anyway, good luck with the survey, and I look forward to the published results.
David
