Blue-footed booby
The blue-footed booby is a specialized fish eater, feeding on small schooling fish such as sardines, anchovies, mackerel, and flying fish. It will also take squid and offal. The blue-footed booby hunts by diving into the ocean after prey, sometimes from a great height, and can also swim underwater in pursuit of its prey. It can hunt singly, in pairs, or in larger flocks. Boobies travel in parties of about 12 to areas of water with large schools of small fish. When the lead bird sees a fish shoal in the water, it will signal to the rest of the group and they will all dive in unison, pointing their bodies down like arrows.
Blue-winged leafbird
The blue-winged leafbird ("Chloropsis cochinchinensis") is a species of leafbird found in forest and second growth throughout Southeast Asia as far east as Borneo and as far south as Java. It previously included Jerdon's leafbird ("C. jerdoni") from the Indian Subcontinent, and the Bornean leafbird ("C. kinabaluensis") from northern Borneo as subspecies, but differs from both in measurements and morphology, with Jerdon's lacking any blue to the flight feathers, and Bornean having a distinctive male-like female plumage. The distribution of the blue-winged and the Bornean leafbird are known to approach each other, but there is no evidence of intergradation.