Wood Storks are considered a threatened species. This makes little 566 an important baby. Juvenile storks have feathered heads which they will lose at adulthood. The young bird in the middle has a yellow band, # 566.
It’s nice to see these young birds since it means they are breeding here, expanding their range. In both the USA and Brazil they had been considered an endangered species but numbers have come back.
The typical adult is a large bird which stands 83 to 115 cm (33–45 in) tall and spans 140 to 180 cm (55–71 in) across the wings. However there looks to be birds in the flocks larger than others.
This group was fishing along the edge of a large marsh with members flying in and out so I never did get a good count of how many there were.