It's low tide on the estuary and the heron is seeking crabs (and anything else that moves) among the eel grass.
From the colony pictured below on 2 November, by the 16th the number of chicks grew from 82 to 357 and the oldest were starting to grow feathers. The photo was taken from across the water and is very heavily cropped.
Birds near walkways are used to people walking past but can become wary when I stop for photos. I think it's partly that I'm suddenly doing something different from all the regular people, and partly the realisation that they have been seen. This pukeko kept an eye on me and slowly moved away. Not too concerned, but not trusting me either.
A small part of a colony of about 1000 birds. The colony is on a spit with a good view across the water from where the birds can be watched without disturbing them.
This page highlights one photo from each outing. The subjects will vary - it will be whatever caught my eye or was most special on that day.