ajohn

The dead bird photo is clearly a chick. It looks like it is probably a White-shouldered Starling, which are nesting around the Mai Po car park. I think the adults sometimes remove the bodies of chicks which die in the nest, to prevent infection to the surviving chicks. Sadly, it is not unusual for some chicks to die while still in the nest, perhaps especially if the adults are less experieneced.  Most broods of starlings seem to fledge all of the chicks, though.