This blue-footed booby parent is taking very careful care of its eggs. They will be incubated for around 41-45 days before hatching. Both parents take turns incubating, and I can’t tell whether this is mom or dad because I can’t see the eye pupils well enough (pupil size is the best visual indicator of booby sex).
This bird species almost always lays two eggs. If conditions are good, both will grow up well. But if resources are scarce, the older chick may harass or even kill the younger one to get rid of the competition.