Secretarybird (English Wikipedia)

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. Archived from the original on 7 April 2020. Retrieved 7 April 2020.

animaldiversity.org (Global: 1,859^th place; English: 1,573^rd place)

Sagittarius serpentarius (secretary bird). (n.d.). Animal Diversity Web. https://animaldiversity.org/accounts/Sagittarius_serpentarius/
Sagittarius serpentarius (secretary bird). (n.d.). Animal Diversity Web. https://animaldiversity.org/accounts/Sagittarius_serpentarius/

archive.org (Global: 6^th place; English: 6^th place)

Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. pp. 345, 354. ISBN 978-1-4081-2501-4.
Illiger, Johann Karl Wilhelm (1811). Prodromus systematis mammalium et avium (in Latin). Berlin: C. Salfeld. p. 234.
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.
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.
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. p. 22.

bbc.co.uk (Global: 8^th place; English: 10^th place)

"Endangered secretary bird born at Longleat Safari Park". BBC News. 28 June 2024. Archived from the original on 22 August 2024. Retrieved 22 August 2024.

biodiversitylibrary.org (Global: 387^th place; English: 373^rd place)

Sharpe, Richard Bowdler (1874). Catalogue of the Birds in the British Museum. Vol. 1. London: British Museum (Natural History). Department of Zoology. p. 45. Archived from the original on 17 October 2021. Retrieved 11 April 2020.
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. Archived from the original on 8 February 2021. Retrieved 20 November 2019. 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. Archived from the original on 1 November 2020. Retrieved 20 November 2019. Contains eight pages and a plate.
Miller, John Frederick (1779). Icones animalium et plantarum (in Latin). Vol. 1. London. Part 5, Plate 28. Archived from the original on 16 January 2021. Retrieved 20 November 2019.
Hermann, Johann (1783). Tabula affinitatum animalium (in Latin). Argentorati [Strasbourg]: Printed by Joh. Georgii Treuttel. pp. 136, 235. Archived from the original on 27 November 2021. Retrieved 20 November 2019.
Cuvier, Georges (1798). Tableau élémentaire de l'histoire naturelle des animaux (in French). Paris: Baudouin. p. 254. Archived from the original on 8 May 2022. Retrieved 9 April 2020.
Ogilby, William (1835). "Genus Gypogeranus Ill". Proceedings of the Zoological Society of London. 3: 104–105. Archived from the original on 8 May 2022. Retrieved 12 April 2020.
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. Archived from the original on 27 November 2021. Retrieved 25 November 2019.
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]. Archived from the original on 23 November 2019. Retrieved 23 November 2019.

birdtheme.org (Global: low place; English: low place)

Scharning, Kjell. "Secretary Bird Sagittarius serpentarius". Theme Birds on Stamps. Archived from the original on 15 June 2020. Retrieved 23 April 2020.

books.google.com (Global: 3^rd place; English: 3^rd place)

Hume, Julian P. (2017). Extinct Birds. London: Bloomsbury Publishing. p. 413. ISBN 978-1-4729-3746-9.
Ali, Bushra (2013). Encyclopedia of Sudan Banknotes 1856–2012. Lulu.com. p. 43. ISBN 978-1-300-92058-8.

doi.org (Global: 2^nd place; English: 2^nd place)

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.
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.
Glenn, Ian (2018). "Shoot the messager? How the secretarybird Sagittarius serpentarius got its names mostly wrong". Ostrich. 89 (3): 287–290. Bibcode:2018Ostri..89..287G. doi:10.2989/00306525.2018.1499561. S2CID 91373517.
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.
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.
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. Bibcode:1983Geobi..16..443M. 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.
Fry, Charles Hilary (1977). "Etymology of "Secretary Bird"". Ibis. 119 (4): 550. doi:10.1111/j.1474-919X.1977.tb02069.x.
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.
Greiner, Ellis C.; Kocan, A. A. (1977). "Leucocytozoon (Haemosporida; Leucocytozoidae) of the Falconiformes". Canadian Journal of Zoology. 55 (5): 761–770. Bibcode:1977CaJZ...55..761G. 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. Bibcode:1993Ostri..64...67B. 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.
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. Bibcode:1995Ostri..66...61K. 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. Bibcode:2006Ostri..77..127H. 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. Bibcode:2019Ostri..90...97W. doi:10.2989/00306525.2019.1581295. S2CID 195422587. Archived from the original on 9 October 2023. Retrieved 3 November 2022.
Janzen, D. H. (1976). "The depression of reptile biomass by large herbivores". American Naturalist. 110 (973): 371–400 [374–375]. Bibcode:1976ANat..110..371J. doi:10.1086/283074. JSTOR 2459760. S2CID 83955487.
Harrison, J. Spranger (1944). "From an angler's note-book". Ostrich. 15 (2): 130–134. Bibcode:1944Ostri..15..130H. doi:10.1080/00306525.1944.9634703.
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.
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.
Portugal, Steven J.; Murn, Campbell P.; Sparkes, Emily L.; Daley, Monica A. (2016). "The fast and forceful kicking strike of the secretary bird". Current Biology. 26 (2): R58 – R59. Bibcode:2016CBio...26..R58P. doi:10.1016/j.cub.2015.12.004. PMID 26811886. S2CID 4965363.
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.
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.
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.
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.
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. Bibcode:1997BCons..79..173A. CiteSeerX 10.1.1.625.4717. doi:10.1016/s0006-3207(96)00098-5.
Todd, William T. (1988). "Hand-rearing the secretary bird Sagitarius serpentarius at Oklahoma City Zoo". International Zoo Yearbook. 27 (1): 258–263. doi:10.1111/j.1748-1090.1988.tb03220.x.

edgeofexistence.org (Global: low place; English: low place)

Amakobe, Bernard; Ndang'ang'a, Kariuki; Githiru, Mwangi; Gray, Claudia; Owen, Nisha; Couchman, Olivia (2019). "A survival blueprint for the Secretarybird, Sagittarius serpentarius, an output from Wildlife Works, Kenya and an EDGE of Existence fellowship" (PDF). Zoological Society of London. Archived (PDF) from the original on 16 June 2021. Retrieved 8 April 2020.

figshare.com (Global: 5,893^rd place; English: 3,320^th place)

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. Bibcode:2019Ostri..90...97W. doi:10.2989/00306525.2019.1581295. S2CID 195422587. Archived from the original on 9 October 2023. Retrieved 3 November 2022.

harvard.edu (Global: 18^th place; English: 17^th place)

ui.adsabs.harvard.edu

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.
Glenn, Ian (2018). "Shoot the messager? How the secretarybird Sagittarius serpentarius got its names mostly wrong". Ostrich. 89 (3): 287–290. Bibcode:2018Ostri..89..287G. doi:10.2989/00306525.2018.1499561. S2CID 91373517.
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.
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. Bibcode:1983Geobi..16..443M. doi:10.1016/S0016-6995(83)80104-1.
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.
Greiner, Ellis C.; Kocan, A. A. (1977). "Leucocytozoon (Haemosporida; Leucocytozoidae) of the Falconiformes". Canadian Journal of Zoology. 55 (5): 761–770. Bibcode:1977CaJZ...55..761G. 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. Bibcode:1993Ostri..64...67B. doi:10.1080/00306525.1993.9634206.
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. Bibcode:1995Ostri..66...61K. 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. Bibcode:2006Ostri..77..127H. 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. Bibcode:2019Ostri..90...97W. doi:10.2989/00306525.2019.1581295. S2CID 195422587. Archived from the original on 9 October 2023. Retrieved 3 November 2022.
Janzen, D. H. (1976). "The depression of reptile biomass by large herbivores". American Naturalist. 110 (973): 371–400 [374–375]. Bibcode:1976ANat..110..371J. doi:10.1086/283074. JSTOR 2459760. S2CID 83955487.
Harrison, J. Spranger (1944). "From an angler's note-book". Ostrich. 15 (2): 130–134. Bibcode:1944Ostri..15..130H. doi:10.1080/00306525.1944.9634703.
Portugal, Steven J.; Murn, Campbell P.; Sparkes, Emily L.; Daley, Monica A. (2016). "The fast and forceful kicking strike of the secretary bird". Current Biology. 26 (2): R58 – R59. Bibcode:2016CBio...26..R58P. doi:10.1016/j.cub.2015.12.004. PMID 26811886. S2CID 4965363.
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.
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. Bibcode:1997BCons..79..173A. CiteSeerX 10.1.1.625.4717. doi:10.1016/s0006-3207(96)00098-5.

hathitrust.org (Global: 441^st place; English: 311^th place)

babel.hathitrust.org

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. Archived from the original on 7 October 2022. Retrieved 8 April 2020.

iucnredlist.org (Global: 88^th place; English: 160^th place)

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.

journals.co.za (Global: low place; English: 9,269^th place)

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].
Martin-Mateo, M. P.; Gallego, J. (1992). "Redescription of two species of Mallophaga (Insecta) parasites on Sagittarius serpentarius (Miller) (Aves)". Journal of the Entomological Society of South Africa. 55 (1): 137–147.

jstor.org (Global: 26^th place; English: 20^th place)

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

longleat.co.uk (Global: low place; English: low place)

"A New Hatchling". www.longleat.co.uk. Archived from the original on 22 August 2024. Retrieved 22 August 2024.

nih.gov (Global: 4^th place; English: 4^th place)

pubmed.ncbi.nlm.nih.gov

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.
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.
Greiner, Ellis C.; Kocan, A. A. (1977). "Leucocytozoon (Haemosporida; Leucocytozoidae) of the Falconiformes". Canadian Journal of Zoology. 55 (5): 761–770. Bibcode:1977CaJZ...55..761G. doi:10.1139/z77-099. PMID 406030.
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.
Portugal, Steven J.; Murn, Campbell P.; Sparkes, Emily L.; Daley, Monica A. (2016). "The fast and forceful kicking strike of the secretary bird". Current Biology. 26 (2): R58 – R59. Bibcode:2016CBio...26..R58P. doi:10.1016/j.cub.2015.12.004. PMID 26811886. S2CID 4965363.
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.
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.

ncbi.nlm.nih.gov

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.
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.

peregrinefund.org (Global: low place; English: low place)

Secretarybird | The Peregrine Fund. (n.d.). https://peregrinefund.org/explore-raptors-species/secretary-bird/secretarybird

psu.edu (Global: 207^th place; English: 136^th place)

citeseerx.ist.psu.edu

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. Bibcode:1997BCons..79..173A. CiteSeerX 10.1.1.625.4717. doi:10.1016/s0006-3207(96)00098-5.

researchgate.net (Global: 120^th place; English: 125^th place)

Janzen, D. H. (1976). "The depression of reptile biomass by large herbivores". American Naturalist. 110 (973): 371–400 [374–375]. Bibcode:1976ANat..110..371J. doi:10.1086/283074. JSTOR 2459760. S2CID 83955487.
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.
Braulinska, Kamila (December 2018). "The secretarybird dilemma: identifying a bird species from the Temple of Hatshepsut at Deir el-Bahari [In] Z. E. Szafrański (Ed.), Deir el-Bahari Studies 2. Polish Archaeology in the Mediterranean 27/2, pp. 83–116. Warsaw: University of Warsaw Press".

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uct.ac.za (Global: 9,159^th place; English: 5,831^st place)

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westerncape.gov.za (Global: low place; English: low place)

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worldbirdnames.org (Global: 1,007^th place; English: 1,255^th place)

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worldcat.org (Global: 5^th place; English: 5^th place)

search.worldcat.org

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. Archived from the original on 7 April 2020. Retrieved 7 April 2020.

Secretarybird (English Wikipedia)

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