It was cold when I got back to Hong Kong last Sunday evening (Jan 30th). But today, three days later, there has been a distinct warmth in the air. It must be the approach of Lunar New Year, which heralds the start of the spring in south China.
Along the access road to Mai Po, I saw about eighty Little Swifts. These are described in The Avifauna of Hong Kong as "abundant spring migrants'...
Little Swifts (Apus affinis)
Well, I declare "spring" officially here !
(Edited, 4th February: _ since July 2010 the HK Birdwatching Society has listed these as House Swifts (Apus nipalensis) - sorry for any confusion !)