I went to have a look to see what was happening at Collins Street, but there is simply a notice to say that the 2nd chick has died. It may simply be that the heat stress just took longer to take affect in the other chick.
I couldn’t find a blog like this to look at the history of the season – is there one? There could be some useful collaboration between the sites.
I am currently in Sydney, but Scylla has put up an excellent video under the last heading ‘interaction’ on this blog, so if you haven’t already seen this, I suggest you head there next.