Thanks a lot, Dominic and Mr. Chan. don't spoil me, ^_^. It takes long time waiting until the birds stop on a spot where the bird itself can be seen well. It's not aloowed to use any tripod inside the cage in HK garden although Ive seen someone's using one. I'll find more places and do my best to improve. I'll do it in alternate days cuz I only teach 2 to 3 hrs in week days. Thanks a lot.