ajohn

wkcheng was correct for #2. This is a coloured White-cheeked Starling. The pattern is still visible below the colouring.
#1 is not a juvenile (which would not occur at this time of year). This is a female White-cheeked.
I agree #4 is White-shouldered.

[ Last edited by ajohn at 6/04/2011 10:36 ]