Www Secretary Bird Com

Www Secretary Bird Com




🔞 ALL INFORMATION CLICK HERE 👈🏻👈🏻👈🏻

































Www Secretary Bird Com
Please be respectful of copyright. Unauthorized use is prohibited.
Scientific Name : Sagittarius serpentarius
Average Life Span : Ten to 15 years
IUCN Red List Status : ? Vulnerable
This filmmaker is 'totally obsessed with the natural world'
Why animal teachers are so rare—and remarkable
Business and activism collide at a Texas horse auction
Where the buffalo roam, endangered prairies thrive
Everyday products may be harming the environment
Babies may practice crying months before they’re born
5 surprising ways hemp helps the planet
Bahrain lacks land, so it's building more: lavish artificial islands
These ancient Dutch sunken roads hide stunning natural beauty
Rewilding the UK, one abandoned lot at a time
Who were the Maya? Decoding the ancient civilization's secrets.
How people viewed the Moon before Apollo and Artemis
He has been fixing grandfather clocks for more than 40 years
These six islands existed in the imaginations of ancient explorers
This man was actually first to sail around the world
Color and magic fill Bali’s skies with the return of a beloved kite festival
Mushrooms inspire engineers to build a better future
Frank Drake, pioneer in the search for alien life, dies at 92
COVID-19 took a unique toll on undocumented immigrants
230-million-year-old fossil is Africa’s oldest known dinosaur
In space, flames become otherworldly
Lessons from nature – bringing waste back into the cycle
This bridge in northern Pakistan is a surreal span
See the ocean’s glow-in-the-dark world on a fluorescent night dive
Burning Man shows how a riotous festival can be accessible
Seaweed is a superfood you can forage. Here’s how.
See America’s parks with those who first called them home
Why are people so dang obsessed with Mars?
The era of greyhound racing in the U.S. is coming to an end
See how people have imagined life on Mars through history
See how NASA’s new Mars rover will explore the red planet
Why are people so dang obsessed with Mars?
The era of greyhound racing in the U.S. is coming to an end
See how people have imagined life on Mars through history
See how NASA’s new Mars rover will explore the red planet
Why are people so dang obsessed with Mars?
The era of greyhound racing in the U.S. is coming to an end
See how people have imagined life on Mars through history
See how NASA’s new Mars rover will explore the red planet
Follow us National Geographic Facebook National Geographic Twitter National Geographic Instagram
A secretary bird (Sagittarius serpentarius ) at the Toronto Zoo.
These raptors of sub-Saharan Africa’s savannas, grasslands, and shrub lands stand at nearly four feet tall—and standing is often how you’ll find them, because they primarily move around on foot . They fly only when necessary, such as to reach their nest in the trees and for courtship displays.
The secretary bird is distinguished by its long legs and a dramatic black crest of feathers on the back of its head. Its body is covered in whitish-gray feathers, with two long, black-tipped tail feathers. Its bare face is usually yellow, orange or red.
The top half of its long legs has black feathers, so it looks a bit like it’s wearing bicycle shorts. The lower half is covered with scales and has barely visible feathers.
While it’s not known for certain where the name “secretary bird” comes from, one explanation is that they’re named after 19 th lawyer’s clerks, or secretaries. Secretaries typically wore gray coats and knee-length black pants, and they would tuck quill pens behind their ears, similar to the bird’s coloring and head feather
Another theory is that “secretary bird” is an English-language corruption of saqr et-tair —roughly meaning “hunter bird” in Arabic—a phrase one traveler claims to have heard Arabic-speaking people in Sudan call it. That explanation, however, has been called into doubt by some experts.
Secretary birds and caracaras are the only two birds of prey that hunt on the ground instead of from the air. Secretary birds’ diets consist of small rodents, amphibians, and reptiles.
Working in small groups or with a partner, secretary birds hunt from just after dawn through to the evening, resting only during the peak heat of the afternoon. They sometimes capture prey by striking at it with their short, hooked beaks, but more famously, secretary birds use their large feet and sharp claws to stomp it to death.
Snakes are a favorite meal, and in fact, the bird’s scientific name, Sagittarius serpentarius, means “the archer of snakes.” If a snake tries striking a secretary bird, it usually ends up with a mouthful of feathers from the bird’s almost seven-foot wingspan, which it uses as a distraction . The scales on their lower legs provide additional protection from snakebites.
Mating displays take place both in the air and on the ground. They perform aerial courtship displays , similar to other raptors, called “pendulum flights.” The bird will swoop down, then up again, repeating the undulating pattern over and over. Sometimes one will dive at the other, who will roll backward in the air, presenting its claws.
On the ground, a pair may dance around each other , wings outstretched, in a display similar to that of cranes. Sometimes other secretary birds will join in.
Mating pairs build nest of sticks together, usually in an acacia tree. They’ll use the same nest for years , continuing to add to it season after season.
The female usually lays three blue-green eggs, which both parents incubate. When the eggs hatch after about 50 days, both parents care for the chicks, including feeding them regurgitated prey. The young birds fledge after about three months.
Human encroachment on secretary birds’ natural habitat has led the species to be classified as vulnerable to extinction . Some of its grasslands habitat has been burned and cleared for livestock. Those open areas leave little protection for prey animals , making it hard for secretary birds to find food. Some secretary birds can make do in human-created open areas by scavenging small animals that didn’t escape the fires or other predators. The presence of humans—mainly herders—is known to interfere with secretary bird breeding.
Secretary birds can be found in a number of protected areas across their large range, but scientists say better monitoring is needed to track their numbers and quantify their decline in some areas.
Copyright © 1996-2015 National Geographic Society Copyright © 2015-2022 National Geographic Partners, LLC. All rights reserved

From Wikipedia, the free encyclopedia
Large, mostly terrestrial bird of prey
In flight showing the long tail and legs, dorsal (above) and ventral views

^ Some ornithologists place the family Cathartidae in a separate order Cathartiformes . [17]



^ Jump up to: a b c BirdLife International (2020). " Sagittarius serpentarius " . IUCN Red List of Threatened Species . 2020 : e.T22696221A173647556. doi : 10.2305/IUCN.UK.2020-3.RLTS.T22696221A173647556.en . Retrieved 19 November 2021 .

^ Jump up to: a b Sharpe, Richard Bowdler (1874). Catalogue of the Birds in the British Museum . Vol. 1. London: British Museum (Natural History). Department of Zoology. p. 45.

^ Jump up to: a b Hackett, S. J.; Kimball, R. T.; Reddy, S.; Bowie, R. C. K.; Braun, E. L.; Braun, M. J.; Chojnowski, J. L.; Cox, W. A.; Han, K-L.; Harshman, J.; Huddleston, C. J.; Marks, B. D.; Miglia, K. J.; Moore, W. S.; Sheldon, F. H.; Steadman, D. W.; Witt, C. C.; Yuri, T. (2008). "A phylogenomic study of birds reveals their evolutionary history". Science . 320 (5884): 1763–1767. Bibcode : 2008Sci...320.1763H . doi : 10.1126/science.1157704 . PMID 18583609 . S2CID 6472805 .

^ Jump up to: a b c Gill, Frank ; Donsker, David, eds. (2019). "Hoatzin, New World vultures, Secretarybird, raptors" . IOC World Bird List Version 9.2 . International Ornithologists' Union . Retrieved 21 November 2019 .

^ Vosmaer, Arnout (1769). Description d'un oiseau de proie, nommé le sagittaire, tout-à-fait inconnu jusque'ici; apporté du Cap de Bonne Espérance (in French). Amsterdam: Pierre Meyer. Contains eight pages and a plate.

^ Vosmaer, Arnout (1769). Beschryving van eenen Afrikaanschen nog geheel onbekenden roof-vogel de Sagitarrius genaamd op de Kaap de Goede Hoop (in Dutch). Amsterdam: Pierre Meyer. Contains eight pages and a plate.

^ Jump up to: a b c Glenn, Ian (2018). "Shoot the messager? How the secretarybird Sagittarius serpentarius got its names mostly wrong". Ostrich . 89 (3): 287–290. doi : 10.2989/00306525.2018.1499561 . S2CID 91373517 .

^ Miller, John Frederick (1779). Icones animalium et plantarum (in Latin). Vol. 1. London. pt 5 pl. 28.

^ Hermann, Johann (1783). Tabula affinitatum animalium (in Latin). Argentorati [Strasbourg]: Printed by Joh. Georgii Treuttel. pp. 136, 235.

^ Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names . London: Christopher Helm. pp. 345, 354. ISBN 978-1-4081-2501-4 .

^ Walters, Michael (2009). "The identity of the birds depicted in Shaw and Miller's Cimelia physica ". Archives of Natural History . 36 (2): 316–326. doi : 10.3366/E0260954109001016 .

^ Cuvier, Georges (1798). Tableau élémentaire de l'histoire naturelle des animaux (in French). Paris: Baudouin. p. 254.

^ Illiger, Johann Karl Wilhelm (1811). Prodromus systematis mammalium et avium (in Latin). Berlin: C. Salfeld. p. 234.

^ Ogilby, William (1835). "Genus Gypogeranus Ill" . Proceedings of the Zoological Society of London . 3 : 104–105.

^ Hume, Julian P. (2017). Extinct Birds . London: Bloomsbury Publishing. p. 413. ISBN 978-1-4729-3746-9 .

^ Mayr, Ernst ; Cottrell, G. William, eds. (1979). Check-list of Birds of the World . Vol. 1 (2nd ed.). Cambridge, Massachusetts: Museum of Comparative Zoology. p. 390.

^ Chesser, R. Terry; Burns, Kevin J.; Cicero, Carla; Dunn, John L.; Kratter, Andrew W; Lovette, Irby J; Rasmussen, Pamela C.; Remsen, J. V. Jr; Rising, James D.; Stotz, Douglas F.; Winker, Kevin (2017). "Fifty-seventh supplement to the American Ornithological Society's Check-list of North American Birds " . The Auk . 133 (3): 544–560. doi : 10.1642/AUK-16-77.1 .

^ Prum, R. O. ; Berv, J. S.; Dornburg, A.; Field, D. J.; Townsend, J. P.; Lemmon, E. M.; Lemmon, A. R. (2015). "A comprehensive phylogeny of birds (Aves) using targeted next-generation DNA sequencing". Nature . 526 (7574): 569–573. Bibcode : 2015Natur.526..569P . doi : 10.1038/nature15697 . PMID 26444237 . S2CID 205246158 .

^ Jump up to: a b Caley, Kevin (2007). "Fossil birds". In del Hoyo, Josep; Elliott, Andrew; Christie, David (eds.). Handbook of the Birds of the World . Vol. 12: Picathartes to Tits and Chickadees. Barcelona: Lynx Edicions. pp. 11–56. ISBN 978-84-96553-42-2 .

^ Mourer-Chauviré, Cécile; Cheneval, Jacques (1983). " Les Sagittariidae fossiles (Aves, Accipitriformes) de l'Oligocène des phosphorites du Quercy et du Miocène inférieur de Saint-Gérand-le-Puy ". Geobios (in French). 16 (4): 443–459. doi : 10.1016/S0016-6995(83)80104-1 .

^ Feduccia, A.; Voorhies, M. R. (1989). "Miocene hawk converges on Secretarybird". Ibis . 131 (3): 349–354. doi : 10.1111/j.1474-919X.1989.tb02784.x .

^ Buffon, Georges-Louis Leclerc de (1780). " Le Secrétaire ou Le Messager " . Histoire Naturelle des Oiseaux (in French). Vol. 14. Paris: De l'Imprimerie Royale. pp. 30–39 [35].

^ Fry, Charles Hilary (1977). "Etymology of "Secretary Bird" ". Ibis . 119 (4): 550. doi : 10.1111/j.1474-919X.1977.tb02069.x .

^ Jump up to: a b c d e f g h i j k l m n o p q r s Brown, L. H.; Urban, E. K.; Newman, K., eds. (1982). The Birds of Africa . Vol. 1. London: Academic Press. pp. 437–440. ISBN 978-0-12-137301-6 .

^ Jump up to: a b Ferguson-Lees, J.; Christie, D. A. (2001). Raptors of the World . New York: Houghton Mifflin. p. 248. ISBN 978-0618127627 .

^ Biggs, H. C.; Kemp, A. C.; Mendelsohn, H. P.; Mendelsohn, J. M. (1979). "Weights of southern African raptors and owls" . Durban Museum Novitates . 12 (7): 73–81 [75].

^ Jump up to: a b c d e f g h i j k l m n o p q r Kemp, A. C. (1994). "Family Sagittariidae (Secretarybird)" . In del Hoyo, J.; Elliott, A.; Sargatal, J. (eds.). Handbook of the Birds of the World . Vol. 2: New World Vultures to Guineafowl. Barcelona: Lynx Edicions. pp. 206–215. ISBN 978-84-87334-15-3 .

^ Dean, W. R. J.; Milton, S. J.; Jeltsch, F. (1999). "Large trees, fertile islands, and birds in arid savanna". Journal of Arid Environments . 41 (1): 61–78. Bibcode : 1999JArEn..41...61D . doi : 10.1006/jare.1998.0455 .

^ Jump up to: a b c "Secretary Bird | San Diego Zoo Animals & Plants" . animals.sandiegozoo.org . Archived from the original on 19 November 2014 . Retrieved 18 November 2017 .

^ de Swardt, Dawid H. (2016). "Secretarybird Sagittarius serpentarius resighted after five years" . Biodiversity Observations . 7 (26): 1–2.

^ Greiner, Ellis C.; Kocan, A. A. (1977). "Leucocytozoon (Haemosporida; Leucocytozoidae) of the Falconiformes". Canadian Journal of Zoology . 55 (5): 761–770. doi : 10.1139/z77-099 . PMID 406030 .

^ Bennett, G. F.; Earlé, R. A.; Peirce, M. A. (1993). "The Leucocytozoidae of South African birds: The Falconiformes and Strigiformes". Ostrich . 64 (2): 67–72. doi : 10.1080/00306525.1993.9634206 .

^ Valkiūnas, G.; Mobley, K.; Iezhova, T. A. (2016). " Hepatozoon ellisgreineri n. sp. (Hepatozoidae): description of the first avian apicomplexan blood parasite inhabiting granulocytes". Parasitology Research . 115 (2): 609–613. doi : 10.1007/s00436-015-4777-4 . PMID 26472715 . S2CID 18151844 .

^ Martin-Mateo, M. P. (1992). "Redescription of two species of Mallophaga (Insecta) parasites on Sagittarius serpentarius (Miller) (Aves)". Journal of the Entomological Society of South Africa . 5 (1): 137–147.

^ Jump up to: a b Kemp, Alan C. (1995). "Aspects of the breeding biology and behaviour of the secretarybird Sagittarius serpentarius near Pretoria, South Africa". Ostrich . 66 (2–3): 61–68. doi : 10.1080/00306525.1995.9633760 .

^ Herholdt, J. J.; Anderson, M. D. (2006). "Observations on the population and breeding status of the African whitebacked vulture, the black-chested snake eagle, and the secretarybird in the Kgalagadi Transfrontier Park". Ostrich . 77 (3&4): 127–135. doi : 10.2989/00306520609485523 . S2CID 85889249 .

^ Whitecross, M. A.; Retief, E. F.; Smit-Robinson, H. A. (2019). "Dispersal dynamics of juvenile secretarybirds Sagittarius serpentarius in southern Africa". Ostrich . 90 (2): 97–110. doi : 10.2989/00306525.2019.1581295 . S2CID 195422587 .

^ Jump up to: a b Janzen, D. H. (1976). "The depression of reptile biomass by large herbivores" . American Naturalist . 110 (973): 371–400 [374–375]. doi : 10.1086/283074 . JSTOR 2459760 . S2CID 83955487 .

^ Mills, M. G. L.; Mills, M. E. J. (2014). "Cheetah cub survival revisited: a re‐evaluation of the role of predation, especially by lions, and implications for conservation" . Journal of Zoology . 292 (2): 136–141 [139]. doi : 10.1111/jzo.12087 .

^ Davies, G. B. P.; Retief, E. F.; Smit-Robinson, H. (2014). "Snakes in the diet of Secretarybirds Sagittarius serpentarius : an example from Balfour, Mpumalanga" . Ornithological Observations . 5 : 361–364.

^ Maloiy, G.; Warui, C. N.; Clemens, E. T. (1987). "Comparative gastrointestinal morphology of the Kori bustard and secretary bird". Zoo Biology . 6 (3): 243–251. doi : 10.1002/zoo.1430060307 .

^ Clench, Mary H.; Mathias, John R. (1995). "The avian cecum: a review" (PDF) . Wilson Bulletin . 107 (1): 93–121 [100–101].

^ Jump up to: a b Portugal, Steven J.; Murn, Campbell P.; Sparkes, Emily L.; Daley, Monica A. (2016). "The fast and forceful kicking strike of the secretary bird" (PDF) . Current Biology . 26 (2): R58–R59. doi : 10.1016/j.cub.2015.12.004 . PMID 26811886 . S2CID 4965363 .

^ Sinclair, I.; Ryan, P.; Christy, P.; Hockey, P. (2003). Birds of Africa: South of the Sahara . Cape Town: Struik. ISBN 978-1-86872-857-2 .

^ Churcher, C. S. (1984). "A zoological study of the ivory knife handle from Abu Zaidan". In Needler, Winifred (ed.). Predynastic and Archaic Egypt in the Brooklyn Museum, Brooklyn . The Brooklyn Museum. pp. 154–155. ISBN 978-0-87273-099-1 .

^ Jump up to: a b Kinzelbach, Ragnar K. (2008). "Pre-Linnaean pictures of the secretarybird, Sagittarius serpentarius (J. F. Miller, 1779)" . Archives of Natural History . 35 (2): 243–251. doi : 10.3366/E0260954108000375 .

^ "The National Symbols" (PDF) . Western Cape Government . Retrieved 23 December 2019 .

^ Smith, Benjamin; Lewis-Williams, J. D.; Blundell, Geoffrey; Chippindale, Christopher (2000). "Archaeology and symbolism in the new South African coat of arms". Antiquity . 74 (285): 467–468. doi : 10.1017/S0003598X00059688 . S2CID 162034040 .

^ Ali, Bushra (2013). Encyclopedia of Sudan Banknotes 1856–2012 . Lulu.com. p. 43. ISBN 978-1-300-92058-8 .

^ Scharning, Kjell. "Secretary Bird Sagittarius serpentarius " . Theme Birds on Stamps . Retrieved 23 April 2020 .

^ Galaty, John G. (1998). "The Maasai ornithorium: tropic flights of avian imagination in Africa". Ethnology . 37 (3): 227–238. doi : 10.2307/3774014 . JSTOR 3774014 .

^ Kioko, John; Smith, Delaney; Kiffner, Christian (2015). "Uses of birds for ethno medicine among the Maasai people in Monduli District, Northern Tanzania" . International Journal of Ethnobiology & Ethnomedicine . 1 (1): 1–13. ISSN 2394-0891 .

^ Waters, M. W. (1926). Cameos from the Kraal . Alice, South Africa: Lovedale Institution Press. pp. 55–56.

^ Sclater, W. L. (1903). The Birds of South Africa. Volume III. Picarians, Parrots, Owls and Hawks . London: R. H. Porter. p. 403.

^ Godfrey, Robert (1941). Bird-lore of the Eastern Cape Province. Bantu Studies. Monograph Series No. 2 . Johannesburg: Witwatersrand University Press.

^ Smith, Dave (1998). Disney A to Z . Glendale: Disney Editions. p. 601. ISBN 9780786863914 .

^ Bowman, Michael; Davies, Peter; Redgwell, Catherine (2010). Lyster's International Wildlife Law . Cambridge: Cambridge University Press. p. 262. ISBN 9781139494953 .

^ Hofmeyr, Sally D.; Symes, Craig T.; Underhill, Leslie G. (2014). "Secretarybird Sagittarius serpentarius Population Trends and Ecology: Insights from South African Citizen Science Data" . PLOS ONE . 9 (5): e96772. Bibcode : 2014PLoSO...996772H . doi : 10.1371/journal.pone.0096772 . PMC 4016007 . PMID 24816839 .

^ Jump up to: a b Hofmeyr, Sally D.; Symes, Craig T.; Underhill, Leslie G. (2014). "Secretarybird Sagittarius serpentarius Population Trends and Ecology: Insights from South African Citizen Science Data" . PLOS ONE . 9 (5): e96772. Bibcode : 2014PLoSO...996772H . doi : 10.1371/journal.pone.0096772 . PMC 4016007 . PMID 24816839 .

^ Allan, D. G.; Harrison, J. A.; Navarro, R. A.; van Wilgen, B. W.; Thompson, M. W. (1997). "The impact of commercial afforestation on bird population in Mpumalanga Province, South Africa – Insights from Bird-Atlas Data". Biological Conservation . 79 (2–3): 173–185. CiteSeerX 10.1.1.625.4717 . doi : 10.1016/s0006-3207(96)00098-5 .

^ Amakobe, Bernard; Ndang'ang'a, Kariuki; Githiru, Mwangi; Gray, Claudia; Owe
Columbia Classic Outdoor
Evil Angel Nacho
Petite Nymphet Almost Airtight Double Penetration

Report Page