Thanks for your answer Brain. I watch them carefully at my feeder here (Eastern Canada), and they seem healthy so far. I wish you all the best with your birds, hoping things are going to get better in your region.
I guess many people do keep a good eye on whats going on, but how many sit there with a a Canon 100-400 zoom, which gives you the chance to see things later that you may well have missed live? My wife says she would not have noticed most of our problem birds if I hadn't shown her the shots on the PC.
But it does pose the question of what is going on?
Concerning the Finches:http://www.rspb.org.uk/advice/helpingbirds/health/sickbirds/greenfinches.aspx
Concerning the Pox, the Great tit with the big growth on its breast has not been seen over the weekend,
makes you wonder what will happen if a Hawk ate it? OTOH probably nothing as it does seem as if the pox doesn't affect all species.