List of birds displaying homosexual behavior
For these birds, there is documented evidence of homosexual or transgender behavior of one or more of the following kinds: sex, courtship, affection, pair bonding, or parenting, as noted in researcher and author Bruce Bagemihl's 1999 book Biological Exuberance: Animal Homosexuality and Natural Diversity.
Bagemihl writes that the presence of same-sex sexual behavior was not 'officially' observed on a large scale until the 1990s due to possible observer bias caused by social attitudes towards LGBT people.[2][3] Bagemihl devotes three chapters; Two Hundred Years at Looking at Homosexual Wildlife, Explaining (Away) Animal Homosexuality and Not For Breeding Only in his 1999 book Biological Exuberance to the "documentation of systematic prejudices" where he notes "the present ignorance of biology lies precisely in its single-minded attempt to find reproductive (or other) "explanations" for homosexuality, transgender, and non-procreative and alternative heterosexualities.[4] Petter Bøckman, academic adviser for the Against Nature? exhibit stated "[M]any researchers have described homosexuality as something altogether different from sex. They must realise that animals can have sex with who they will, when they will and without consideration to a researcher's ethical principles". Homosexual behavior is found amongst social birds and mammals, particularly the sea mammals and the primates.[3]
Animal sexual behavior takes many different forms, even within the same species and the motivations for and implications of their behaviors have yet to be fully understood. Bagemihl's research shows that homosexual behavior, not necessarily sex, has been documented in about 500 species as of 1999, ranging from primates to gut worms.[2][5] Homosexuality in animals is seen as controversial by social conservatives because it asserts the naturalness of homosexuality in humans, while others counter that it has no implications and is nonsensical to equate animal behavior to morality.[6][7] Animal preference and motivation is always inferred from behavior. Thus homosexual behavior has been given a number of terms over the years. The correct usage of the term homosexual is that an animal exhibits homosexual behavior, however this article conforms to the usage by modern research[8][9][10][11] applying the term homosexuality to all sexual behavior (copulation, genital stimulation, mating games and sexual display behavior) between animals of the same sex.
- This is an incomplete list that may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries.
This list is part of a larger list of animals displaying homosexual behavior including mammals, insects, fish etc.
Selected images
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Chilean flamingoes eating, drinking, and preening in St. Petersburg, Florida; flamingos (as well as penguins and other species) sometimes form committed same-sex relationships that can involve sex, traveling and living together, and raising young together.[1]
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Two New York Central Park Zoo's male chinstrap penguins, similar to those pictured, became internationally known when they became a couple and were given an egg that needed hatching and care, which they successfully did.[2]
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Male Guianan cock-of-the-rock, distributed in the mountainous regions of Guyana, eastern Colombia, southern Venezuela, Suriname, French Guiana and northern Amazonian Brazil, "delight in homosexuality" with almost 40 percent engaging in a form of homosexual activity and a small percentage never copulating with females.[3][4]
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The black swan, Cygnus atratus is a large waterbird which breeds mainly in the southeast and southwest regions of Australia. An estimated one-quarter of all black swans pairings are homosexual and they steal nests, or form temporary threesomes with females to obtain eggs, driving away the female after she lays the eggs.[5][6]
- ^ Kick (2001)
- ^ Cite error: The named reference
Central_Park_Zoo.27s_gay_penguins
was invoked but never defined (see the help page). - ^ Bagemihl (1999) page 566-569
- ^ Imaginova (2007i)
- ^ Goudarzi (2006)
- ^ Imaginova (2007f)
Birds
Notes
- ↑ 1.0 1.1 Smith (February 7, 2004)
- ↑ 2.0 2.1 Bagemihl (1999)
- ↑ 3.0 3.1 News-medical.net (2006)
- ↑ Bagemihl (1999) page 213
- ↑ Harrold (1999)
- ↑ Solimeo (2004)
- ↑ Solimeo (2004b)
- ↑ Bagemihl (1999) pages 122-166
- ↑ Roughgarden (2004) pp.13-183
- ↑ Vasey (1995) pages 173-204
- ↑ Sommer & Vasey (2006)
- ↑ 12.0 12.1 Bagemihl (1999) pages 644-7
- ↑ 13.0 13.1 13.2 13.3 365 Gay.com (2005)
- ↑ 14.0 14.1 14.2 14.3 14.4 Bagemihl (1999) pages 524-7
- ↑ 15.0 15.1 15.2 Bagemihl (1999) pages 552-6
- ↑ 16.0 16.1 Bagemihl (1999) pages 640-3
- ↑ 17.0 17.1 17.2 17.3 17.4 Bagemihl (1999) pages 496-500
- ↑ 18.0 18.1 18.2 18.3 18.4 18.5 18.6 18.7 18.8 18.9 18.10 18.11 18.12 18.13 18.14 Bagemihl (1999) pages 650-5
- ↑ Bagemihl (1999) pages 81 & 89
- ↑ 20.0 20.1 20.2 Bagemihl (1999) pages 583-6
- ↑ 21.0 21.1 21.2 Bagemihl (1999) pages 632-5
- ↑ Poiani (2010) page 47
- ↑ 23.0 23.1 Bagemihl (1999) pages 575-7
- ↑ 24.0 24.1 24.2 24.3 24.4 24.5 Bagemihl (1999) pages 606-10
- ↑ Bagemihl (1999) pages 511-3
- ↑ Bagemihl (1999) pages 556-9
- ↑ 27.0 27.1 Bagemihl (1999) pages 536-9
- ↑ Goudarzi (2006)
- ↑
- ↑ 30.0 30.1 Bagemihl (1999) pages 572-4
- ↑ 31.0 31.1 Bagemihl (1999) pages 647-9
- ↑ 32.0 32.1 32.2 32.3 32.4 Bagemihl (1999) pages 594-7
- ↑ 33.0 33.1 33.2 33.3 Bagemihl (1999) pages 491-5
- ↑ 34.0 34.1 34.2 Bagemihl (1999) pages 602-5
- ↑ Bagemihl (1999) page 81
- ↑ 36.0 36.1 Bagemihl (1999) pages 528-32
- ↑ Bagemihl (1999) pages 569-71
- ↑ 38.0 38.1 38.2 38.3 Bagemihl (1999) pages 544-8
- ↑ 39.0 39.1 Bagemihl (1999) pages 483-7
- ↑ 40.0 40.1 Bagemihl (1999) pages 563-5
- ↑ 41.0 41.1 41.2 41.3 Bagemihl (1999) pages 514-7
- ↑ 42.0 42.1 Bagemihl (1999) pages 591-3
- ↑ Bagemihl (1999) pages 83
- ↑ Smith (February 7, 2004)]
- ↑ 45.0 45.1 45.2 45.3 Bagemihl (1999) pages 501-5
- ↑ 46.0 46.1 46.2 46.3 Bagemihl (1999) pages 518-22
- ↑ 47.0 47.1 47.2 Bagemihl (1999) page 621-6
- ↑ 48.0 48.1 Bagemihl (1999) pages 539-43
- ↑ 49.0 49.1 Bagemihl (1999) pages 506-8
- ↑ Bagemihl (1999) pages 600
- ↑ 51.0 51.1 51.2 Bagemihl (1999) pages 598-601
- ↑ Bagemihl (1999) page 613
- ↑ Bagemihl (1999) pages 534, 535
- ↑ 54.0 54.1 Bagemihl (1999) pages 533-536
- ↑ Bagemihl (1999), page 479-482
- ↑
- ↑
- ↑ Bagemihl (1999), page 522-524
- ↑ 59.0 59.1 Bagemihl (1999) pages 509-10
- ↑ Bagemihl (1999) pages 587-590
- ↑ 61.0 61.1 Bagemihl (1999) pages 560-562
- ↑ Bagemihl (1999) pages 548-552
- ↑ 63.0 63.1 Bagemihl (1999) page 232
- ↑ Bagemihl (1999) pages 487-491
- ↑ Bagemihl (1999) pages 141-142, 577-579
- ↑ Bagemihl (1999) page 596
- ↑ Bagemihl (1999) pages 486, 663
- ↑ Bagemihl (1999) page 634
- ↑ 69.0 69.1 Bagemihl (1999) pages 611-614
- ↑ Bagemihl (1999) page 601
- ↑ Bagemihl (1999) pages 614-616
- ↑ 72.0 72.1 Bagemihl (1999) page 639
- ↑ 73.0 73.1 Bagemihl (1999) pages 636-639
- ↑ Bagemihl (1999) page 616
- ↑ Bagemihl (1999) page 604
- ↑ Bagemihl (1999) page 635
- ↑ Poiani (2010) page 49
- ↑ Bagemihl (1999) pages 617-620
- ↑ Bagemihl (1999) pages 580-3
- ↑ Bagemihl (1999) page 489
- ↑ Bagemihl (1999) pages 82, 90
- ↑ Bagemihl (1999) pages 206, 232
- ↑ Bagemihl (1999) pages 81, 85, 101, 150, 156
See also
- Against Nature?, an exhibit at the University of Oslo's Natural History Museum that took place until 19 August 2007.
- Anthropomorphism
- Behavioral ecology is the study of the ecological and evolutionary basis for animal behavior
- Biodiversity
- Bioethics
- Biology and sexual orientation
- Ethology is the scientific study of animal behavior, and a branch of zoology; cognitive ethology fuses cognitive science and classical ethology to observe animals under more-or-less natural conditions
- Evolutionary biology
- Homosexual behavior in animals#Birds
- Innate bisexuality
- Sexual selection
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