1. Cinnamon Heron (Ardea cinnamonea) 2. Yellow necked Heron (Ardea flavicollis) from Illustrations of Indian zoology (1830… https://www.rawpixel.com/image/329756/free-illustration-image-india-heron-cinnamonFree Image from public domain licenseYellow-necked Bittern (Ardetta flavicollis) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804… https://www.rawpixel.com/image/321698/free-illustration-image-vintage-gould-illustrationsFree Image from public domain license