About Fregata andrewsi Mathews, 1914
Nomenclature
This species is the Christmas frigatebird, with the scientific name Fregata andrewsi Mathews, 1914.
Size and Morphometrics
It measures 89–100 cm (35–39 in) in length, has a wingspan of 205–230 cm (81–91 in), and weighs around 1,550 g (3.42 lb).
Adult Male Plumage
Adult male Christmas frigatebirds are easily identified: they are entirely black except for a white patch on the belly.
Other Plumage Characteristics
Other plumage types of this species resemble the smaller lesser frigatebird, but have whiter bellies and longer white underwing spurs.