On a brief trip into town yesterday, I ducked into the wetlands for a while. As I quietly walked along some tracks I would stop briefly and scan the reed beds and tree tops. During one of these brief stops, a pair of Willie Wagtails began scolding me.
"Could only mean one thing", thinks I, and looking around I found the nest, quite low down and very near the track.
This particular track is well used by walkers, joggers etc, but I expect they don't pause very often and present an implied threat to the nest.
After a couple of quick snaps, I left them in peace. At least it wasn't a Cuckoo they were trying to raise - there were some calls nearby.