On Red Nab an hour before high tide (9.2m). They fed on the plentiful gut weed until finally displaced 15 minutes before high water. Then flew to Ocean Edge salt marsh and continued feeding on the sparser gut weed there.
If they are last years birds, then a repeat performance tomorrow could be expected, although the slightly lower tide (9.1m) might exclude the salt marsh.
The image below is on the salt marsh. The gut weed here grows on the mud between the sea grass. (MD)