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Difference between revisions of "Magnificent Frigatebird" - BirdForum Opus

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;Fregata magnificens
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[[Image:Magnificent_Frigatebird.jpg|thumb|550px|right|Female (above) and Male in mating display<br />Photo &copy; by {{user|Ian+Jeanneret|Ian Jeanneret}}<br/>Santa Cruz, [[Galapagos]], [[Ecuador]]]]
[[Image:Magnificent_Frigatebird.jpg|thumb|550px|right|Photo by Ian Jeanneret]]
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;[[:Category:Fregata|Fregata]] magnificens
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==Identification==
 
==Identification==
Photographed in Santa Cruz, Galapagos
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[[Image:Dabs - Frigatebirds.JPG|thumb|350px|right|Adult male, Adult female, Immature male, Juvenile<br />Photo &copy; by {{user|DABS|DABS}}<br />La Brea, [[Trinidad]], March 2018]]
The Magnificent Frigatebird (Fregata magnificens) was sometimes previously known as Man O'War, reflecting its rakish lines, speed, and aerial piracy of other birds. The Magnificent Frigatebird is 100 cm (39 inches) long with a 215 cm (85 inch) wingspan. Males are all black with a scarlet throat pouch which is inflated like a balloon in the breeding season. Although the feathers are black, the scapular feathers are iridescent and produce a purple colour when they refract sunlight. Females are black, but have a white breast and lower neck sides, a brown band on the wings and a blue eye ring. Immature birds have a white head and underparts.
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[[Image:Magnificaent Frigatebird 72 2263.jpg|thumb|350px|right|Photo &copy; by {{user|STEFFRO1|STEFFRO1}}<br />Fernandina, [[Galapagos Islands]], August 2015]]
 
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*Length: 35–44.9 in or 89–114 cm
This species is very similar to the other Frigatebirds and is similarly sized to all but the Lesser Frigatebird. However, it lacks a white axillary spur, and juveniles show a distinctive diamond-shaped belly patch.
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*Wingspan: 85.4–88.2 in (about 7 feet) or 217–224 cm
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Females significantly larger than males, and [[Caribbean]] populations generally a little larger than more westerly populations.
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Both sexes and all age-groups have:
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*Long, hooked bill
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*Mostly black plumage
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*Long pointed wings with characteristic profile
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*Long, deeply forked tail often held closed<br />
  
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'''Male'''
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*All black with purple gloss
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*Scarlet throat pouch that can be inflated during mating displays<br />
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'''Female'''
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*Black head and back
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*White breast does not reach anywhere near the bill
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*Brown band on wings
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*Inconspicuous blue eye ring<br />
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'''Immature'''
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White head and underparts, rest of bird black
  
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====Similar species====
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On a sitting female, black on the chin and throat makes a dark arrow pointing into the white breast, and on a flying bird, the border seems perpendicular to the flight direction. On a female [[Great Frigatebird]], the white breast points into the black, almost reaching the bill. Up close, look for different color of eye ring<br />Adult male has different color gloss on mantle when seen up close, and lacks the paler line on upper wing usually seen on Great Frigatebird. If visible, leg color should be diagnostic.<br />Juvenile Great Frigatebird is usually yellow/orange/tawny on head and upper breast, but the lack of that is not a completely safe field mark for Magnificent.
  
 
==Distribution==
 
==Distribution==
It is widespread in the tropical Atlantic, breeding colonially in trees in Florida, the Caribbean and Cape Verde Islands. It also breeds along the Pacific coast of the Americas from Mexico to Ecuador including the Galapagos Islands.
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[[United States]]; western [[Mexico]]; [[Central America]]; the [[Caribbean]]; northern [[South America]] to [[Brazil]] in the east and to [[Ecuador]] and [[Galapagos]] in the west; and on [[Cape Verde Islands]].  
  
It has occurred as a vagrant on the Isle of Man in 1998 and in Denmark and Spain. A male was found exhausted at Whitchurch, Shropshire, many miles from the sea, in November 2005. This individual was taken to Chester Zoo but died a few days later.
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==Taxonomy==
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====Subspecies====
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Two subspecies are recognized<sup>[[#References|[1]]]</sup>.
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*''F. m. rothschildi'' - the eastern Pacific (breeding from [[Mexico]] south to [[Ecuador]]), the western Atlantic (breeding Mexico, [[Florida]] and the [[Caribbean]] south to [[Brazil]]), and in the eastern Atlantic (breeding on the [[Cape Verde Islands]], where now very rare or extirpated)
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*''F. m. magnificens'' - [[Galapagos]] Islands
  
==Taxonomy==
 
 
==Habitat==
 
==Habitat==
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Pelagic species; at sea, and commonly along coastlines.  Is not bothered by human settlement, and may benefit from human activities such as fishing and fish cleaning.
 
==Behaviour==
 
==Behaviour==
The Magnificent Frigatebird is silent in flight, but makes various rattling sounds at its nest.
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====Diet====
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Diet includes fish, especially flying fish, which are taken in flight.  Will attack other seabirds to steal their catches or try to force them to disgorge their meals. Will also snatch offal, such as fish entrails discarded by fishermen, from the surface of the sea.
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====Breeding====
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The male attends the nest for about 100 days, while the female stays with the single offspring for approximately another year; most of that time, the young stay in the nest. The female is therefore only able to breed every other year, while males may breed every year or maybe even more often in different colonies. 
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==References==
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#{{Ref-Clements6thAug21}}#Audubon Guides
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#BBC Nature
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{{ref}}
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==External Links==
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{{GSearch|"Fregata magnificens" {{!}} "Magnificent Frigatebird"}}
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{{GS-checked}}1
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<br />
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<br />
  
This species feeds mainly on fish, and also attacks other seabirds to force them to disgorge their meal. Frigatebirds never land on water, and always take their food items in flight.
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[[Category:Birds]] [[Category:Fregata]]
 
 
Frigatebirds, also called man-o'-war-birds, are among the most agile of birds on the wing. They have the largest wingspread in proportion to weight of any bird. In addition to stealing fish from other seabirds, their most famous method of obtaining food, they can soar for hours and often dip down to the surface to pick fish and other marine animals from the water, or skim past a breeding colony of boobies to snatch young birds from their nests. Frigatebirds never alight on the ground or water; their short legs and narrow wings make it difficult for them to take off except from a height, such as the limb of a tree or a rock. Magnificent Frigatebirds do not nest on the Pacific Coast of the United States, but those that wander northward to California (and casually to southern Alaska), probably come from colonies on islands off the western coast of Mexico.
 
==External Links==
 
*[http://www.birdforum.net/pp_gallery/showgallery.php?mcats=all&si=Fregata%20magnificens&what=allfields&name=&when=&whenterm= View more images of Magnificent Frigatebird in the gallery]
 
[[Category:Birds]]
 

Latest revision as of 19:28, 31 May 2023

Female (above) and Male in mating display
Photo © by Ian Jeanneret
Santa Cruz, Galapagos, Ecuador
Fregata magnificens

Identification

Adult male, Adult female, Immature male, Juvenile
Photo © by DABS
La Brea, Trinidad, March 2018
Photo © by STEFFRO1
Fernandina, Galapagos Islands, August 2015
  • Length: 35–44.9 in or 89–114 cm
  • Wingspan: 85.4–88.2 in (about 7 feet) or 217–224 cm

Females significantly larger than males, and Caribbean populations generally a little larger than more westerly populations. Both sexes and all age-groups have:

  • Long, hooked bill
  • Mostly black plumage
  • Long pointed wings with characteristic profile
  • Long, deeply forked tail often held closed

Male

  • All black with purple gloss
  • Scarlet throat pouch that can be inflated during mating displays

Female

  • Black head and back
  • White breast does not reach anywhere near the bill
  • Brown band on wings
  • Inconspicuous blue eye ring

Immature White head and underparts, rest of bird black

Similar species

On a sitting female, black on the chin and throat makes a dark arrow pointing into the white breast, and on a flying bird, the border seems perpendicular to the flight direction. On a female Great Frigatebird, the white breast points into the black, almost reaching the bill. Up close, look for different color of eye ring
Adult male has different color gloss on mantle when seen up close, and lacks the paler line on upper wing usually seen on Great Frigatebird. If visible, leg color should be diagnostic.
Juvenile Great Frigatebird is usually yellow/orange/tawny on head and upper breast, but the lack of that is not a completely safe field mark for Magnificent.

Distribution

United States; western Mexico; Central America; the Caribbean; northern South America to Brazil in the east and to Ecuador and Galapagos in the west; and on Cape Verde Islands.

Taxonomy

Subspecies

Two subspecies are recognized[1].

Habitat

Pelagic species; at sea, and commonly along coastlines. Is not bothered by human settlement, and may benefit from human activities such as fishing and fish cleaning.

Behaviour

Diet

Diet includes fish, especially flying fish, which are taken in flight. Will attack other seabirds to steal their catches or try to force them to disgorge their meals. Will also snatch offal, such as fish entrails discarded by fishermen, from the surface of the sea.

Breeding

The male attends the nest for about 100 days, while the female stays with the single offspring for approximately another year; most of that time, the young stay in the nest. The female is therefore only able to breed every other year, while males may breed every year or maybe even more often in different colonies.

References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, J. A. Gerbracht, D. Lepage, B. L. Sullivan, and C. L. Wood. 2021. The eBird/Clements checklist of Birds of the World: v2021. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/
  2. Audubon Guides
  3. BBC Nature

Recommended Citation

External Links

GSearch checked for 2020 platform.1

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