Thanks for both men’s ideas and information.
Based on our survey on Tai Mo Shan upper area, Brownish-flanked Bush Warbler was mostly found at the southern side of Tai Mo Shan. The high density of Brownish-flanked BW area is concentrated in upper part of Tai Shing Stream. In fact, within breeding season, they rely on montane forest and stream and grassland nearby.
For the Lesser Cuckoo that was exactly heard there. The cuckoo was first heard at 0300am and moved around the slope to west side. It finally heard near the upper car park around 0530am. It seems that it moved down to Chuen Lung (the southwest of Tai Mo Shan, also is the slope of Tai Tso stream).
It may breed in Hong Kong. And it possibly found its host on Tai Mo Shan. However, its breeding status is still a question mark. A juvenile and its host can prove their real breeding status in HK.
By the way, the north of Tai Mo Shan (upper part of Ng Tung Chai) is also another area for Brownish-flanked BW. Also, one Russet Bush Warbler was heard at this area on last Saturday. Russet BW is probably established as a local breeder in HK.
George
