Brown Boobies (Sula leucogaster leucogaster, german: Weißbauchtölpel, french: Fou brun), left immature, right female adult. (463k)
Here are the pictures of Atlantic Brown Booby (Sula leucogaster leucogaster) with links to the pages on which they appear, links to the full sized picture, and the description of the picture with links to the entry in iNaturalist (inaturalist.org)
All pictures are © Dr. Günther Eichhorn, unless otherwise noted.
Caribbean Birds
Dr. Günther Eichhorn Travel Website
Soaring website