gotten quite enthusiastic about birdwatching of late... it doesn't take much effort. just look around when you hear them calling. but you usually have to spend quite abit of time looking... birds tend to be fairly small. and then you go look on the internet and in books and stuff to find out what they're called.
i saw a Greater Racket-tailed Drongo in Macritchie three times... i think it was probably the same bird, on three different occasions. I saw a pair of Magpie Robins and a pair of Black-Naped Orioles hanging around FASS, a small group of Olive-backed Sunbirds hanging around near Physics, and a pair of Common Flamebacks (beautiful woodpeckers with bright orangey backs) behind PGP. thinking about joining some of the Nature Society (Singapore) excursions.
also saw a skink wander across the track in Macritchie and a kingfisher in Bishan Park
useful links:
www.nss.org.sg
besgroup.blogspot.com
www.pulauhantu.org
