This is also known as the Red-naped Ibis.
 

This species is listed as Near Threatened in the IUCN Red List of Threatened Species (https://www.iucnredlist.org/)

 

This species is listed as Vulnerable in the IUCN Red List of Threatened Species (https://www.iucnredlist.org/).

This is variously known as the Pacific Reef Heron, Eastern Reef Egret, and Eastern Reef Heron.
 

This is also known as the Median Egret or Smaller Egret.
 

This is also known as the Large Egret.