Animalia > Chordata > Aves > Suliformes > Fregatidae > Fregata > Fregata andrewsi

Fregata andrewsi (Christmas Frigatebird; Andrew's Frigatebird)

Wikipedia Abstract

The Christmas frigatebird or Christmas Island frigatebird (Fregata andrewsi) is a seabird of the frigatebird family Fregatidae which is endemic to Christmas Island in the Indian Ocean. The Christmas frigatebird is a large lightly built seabird with brownish-black plumage, long narrow wings and a deeply forked tail. It has a wingspan of around 2.15 m (7.1 ft). The male has an egg shaped white patch on its belly and a striking red gular sac which it inflates to attract a mate. The female is slightly larger than the male and has a white breast and belly. They feed on fish taken in flight from the ocean's surface (mostly flying fish), and sometimes indulge in kleptoparasitism, harassing other birds to force them to regurgitate their food. The species is listed as critically endangered by the I
View Wikipedia Record: Fregata andrewsi

Endangered Species

Status: Critically Endangered
View IUCN Record: Fregata andrewsi

EDGE Analysis

The Christmas Island Frigatebird is the rarest endemic seabird on Christmas Island, Australia. It belongs to a family of five birds, the Fregatidae, which have the largest wingspan to body weight ratio of any bird. This bird has the ability to stay aloft for more than a week at a time allowing them to have a large foraging range. It spends a large proportion of time at sea, snatching prey from other birds and plucking squid and fish from the surface of the water. Its breeding habitat is affected by the invasive yellow crazy ant, while threats from habitat loss and pollution from phosphate mining still ongoing.
Uniqueness Scale: Similiar (0) 
 Unique (100)
Uniqueness & Vulnerability Scale: Similiar & Secure (0) 
 Unique & Vulnerable (100)
ED Score: 22.6782
EDGE Score: 5.93714
View EDGE Record: Fregata andrewsi


Adult Weight [2]  3.25 lbs (1.48 kg)
Birth Weight [3]  80 grams
Female Weight [2]  3.42 lbs (1.55 kg)
Male Weight [2]  3.09 lbs (1.40 kg)
Weight Dimorphism [2]  10.7 %
Diet [4]  Carnivore (Invertebrates), Carnivore (Vertebrates), Piscivore
Diet - Endothermic [4]  10 %
Diet - Fish [4]  40 %
Diet - Invertibrates [4]  40 %
Diet - Scavenger [4]  10 %
Forages - Water Surface [4]  80 %
Forages - Underwater [4]  20 %
Clutch Size [3]  1
Incubation [5]  52 days
Maximum Longevity [6]  25 years 7 months
Water Biome [1]  Pelagic, Coastal
Wing Span [5]  7.1 feet (2.17 m)

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Berbak National Park II 423927 Sumatra, Indonesia
Christmas Island National Park II 21698 Christmas Island, Australia
Hat Nopharat Thara - Mu Ko Phi Phi National Park Marine National Park II 98578 Thailand
Khlong Saeng Wildlife Sanctuary IV 243425 Thailand  
Pulu Keeling National Park II 6469 Cocos (Keeling) Islands    
Way Kambas National Park II 306926 Sumatra, Indonesia

Important Bird Areas

BirdLife Species Factsheet: View Factsheet
Name Location  IBA Criteria   Website   Climate   Land Use 
Areia Branca beach and hinterland Timor-Leste A2
Bako-Buntal Bay Malaysia A1, A3, A4i  
Christmas Island Christmas Island (to Australia) A1, A4ii, A4iii  
Hat Nooparat Thara-Mu Ko Phi Phi National Park Thailand A1, A4ii
Koh Tang Archipelago Cambodia A1  
Mantanani islands Malaysia A1, A2, A4ii    
Pulau Dua Indonesia A1, A4i, A4iii
Pulau Rambut Indonesia A1, A4i, A4iii    
Sipadan islands Malaysia A1, A2
Tanjung Datu-Samunsam Protected Area Malaysia A1, A2, A3  
Tempasuk plains Malaysia A1  
Ujung Kulon Indonesia A1, A2, A3  

Alliance for Zero Extinction (AZE) Sites

Name  Location   Map   Climate   Land Use 
Christmas Island National Park Australia  

Biodiversity Hotspots

Name Location Endemic Species Website
Sundaland Brunei Darussalam, Indonesia, Malaysia, Singapore, Thailand Yes

Prey / Diet

Kondakovia longimana (Giant Warty Squid)[7]

Range Map



Attributes / relations provided by
1Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 01, 2010 at
2Marchant, S.; Higgins, PJ (eds.) 1990. The handbook of Australian, New Zealand and Antarctic birds, Vol. 1., ratites to ducks. Oxford University Press, Melbourne
3Terje Lislevand, Jordi Figuerola, and Tamás Székely. 2007. Avian body sizes in relation to fecundity, mating system, display behavior, and resource sharing. Ecology 88:1605
4Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027
5del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
6de Magalhaes, J. P., and Costa, J. (2009) A database of vertebrate longevity records and their relation to other life-history traits. Journal of Evolutionary Biology 22(8):1770-1774
7Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
Biodiversity Hotspots provided by Critical Ecosystem Partnership Fund
AZE sites provided by Alliance for Zero Extinction (2010). 2010 AZE Update.
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access