Five subspecies recognized:
F. m. minor
F. m. aldabrensis
F. m. palmerstoni
F. m. ridgwayi
F. m. nicolli
 

Identification

Howell (1994) has published a very detailed review of the relatively difficult separation of juvenile and adult Magnificant and Great Frigatebirds.
 

Where and When

Click here to view a range map for the Caribbean and central America.
 

Photographs on the web

Literature

Howell, S.N.G. (1994) Magnificent and Great Frigatebirds in the eastern Pacific: a new look at an old problem. Birding 26(6): p400-415.