Five species of these large seabirds, with long, pointed wings and long outer tail feather occur worldwide. Three species to breed in Australia, the Lesser Frigatebird Fregata ariel, Great Frigatebird F. minor and Christmas Island Frigatebird F. andrewsi, the last species has not been recorded in any other country.

Christmas Island Frigatebird

Fregata andrewsi This large (90-100cm) frigatebird has a deeply forked tail, long narrow wings and a large coral pink (adult female) or moderate dark grey (male) bill. The male is mostly black, with a white belly, and a large inflatable red throat sac. The female has a white belly and breast, with the white extending to the shoulders. It is larger than both the Great Frigatebird F. minor (86-93...