由小便認識這鳥 …… 的叫聲。每年春夏之際，便聽到牠們「芋烏芋烏」叫。
birding book from hong kong called this species common koel, but on wiki it is named asian koel, as opposed to pacific koel and others.
i knew this bird since childhood, because of their “koo-Ooo” every spring-cross-summer, but never had a glimpse of the honour.
i was thrilled therefore yesterday founding this gentleman in close distance and stayed long inside a big-leaved fig (registered old and valuable tree) at the middle road park at tsim sha shui.
插入筆記：鵑形目 cuculiformes 的英文俗名就是 cuckoo。
common koel is a resident bird here. it is easy to recognize apart from its signature song for its crimson eyes. the male is glossy bluish-black, with a pale greenish grey bill. the female is brownish with white and buff spots. young birds is more like that of the male and they have a black beak.
it is from the cuckoo order and family.
噪鵑 common koel (eudynamis scolopacea) – 鳥綱 aves class | 鵑形目 cuculiformes order | 杜鵑科 cuculidae family | 噪鵑屬 eudynamys genus | 種 species：噪鵑 e. scolopacea wiki
- the asian koel is found in south asia, china, and southeast asia.
- the asian koel is a brood parasite that lays its eggs in the nests of crows and other hosts, who raise its young.
- the bird is a widely used symbol in indian poetry. wiki