|Pigeons and Doves|
Feral Pigeon (Columba livia domestica) in flight
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Pigeon and dove are common names, often used interchangeably, for the generally short-billed, small-headed, short-legged, plump birds comprising the widely distributed family Columbidae within the order Columbiformes. These birds also are typified by monogamous mating behavior, a characteristic cooing call, use of "pigeon's milk" to feed their young, and specialized bills that allow the steady sucking up of water. The short slender bills have with a fleshy cere (swelling) near the nostrils.
In ornithological practice, there is a tendency for "dove" to be used for smaller species and "pigeon" for larger ones, but this is in no way consistently applied, and historically the common names for these birds involve a great deal of variation between the term "dove" and "pigeon." The species commonly referred to just as the "pigeon" is the feral rock pigeon or rock dove (Columba livia), common in many cities.
This family occurs worldwide, but the greatest variety is in the Indomalaya and Australasia ecozones.
In addition to various species of Columbidae being used by humans for food and to carry messages, the dove has offered considerable symbolic value. In particular, white doves have been used as a symbol of love and peace, as well as the Holy Spirit in the Christian faith. On the other hand, the extinction of the passenger pigeon is a well-known example of human over-exploitation. This species once numbered in the billions in North America, living in enormous flocks, but declined catastrophically in the face of severe hunting pressure for food.
Columbidae is the long extant family of the Columbiformes order, with also includes the extinct family Raphidae with the Dodo and the Rodrigues Solitaire and Réunion Solitaire (Crome 2004). Like many birds, all Columbiformes are monogamous; that is, they have only one single mate at a time. Unlike most other birds, however, they are capable of drinking by sucking up water, without needing to tilt the head back.
The members of the family Columbidae have stout bodies with short legs, small heads, short necks, and heavy plumage. They have short and slender beaks, with two holes (nares or nostrils) that connect to the hollow inner beak and thus to the respiratory system. As with hawks, parrots, and budgerigars, the nostrils of doves and pigeons are located in a fleshy, often waxy structure called the cere (from Latin cera).
Doves and pigeons feed on seeds, fruit, and plants. The usually construct flimsy nests are made of sticks, and the two white eggs are incubated by both sexes. Unlike most other birds, doves and pigeons produce "crop milk," or "pigeon's milk," which is secreted by a sloughing of fluid-filled cells from the lining of the crop. It is regurgitated to feed the young pigeons. Both sexes produce this highly nutritious substance to feed to the young. (Similar crop milk is also produced by flamingos.)
The young doves and pigeons are called "squabs."
Importance to humans
Doves historically have had considerable symbolic value to various cultures, have served to carry messages, and also have served culinary interests.
White doves, usually meaning domesticated rock pigeons, are a traditional Christian and Jewish symbol of love and peace.
According to the biblical story, a dove was released by Noah after the flood in order to find land; it came back carrying an olive branch in its beak, telling Noah that, somewhere, there was land. A dove with an olive branch has since then come to symbolize peace.
Doves or other birds are sometimes released at Christian weddings. They are generally the valued property of individuals who provide them specifically for this purpose. They are regularly permitted to fly free from their home dove cotes and therefore know very well how to fly back home after leaving the scene of the marriage ceremony. All rock pigeons are capable of homing over such short distances, but occasionally birds may be distracted by finding a mate or be caught by a predator.
Doves often are associated with the concept of peace and pacifism. They often appear in political cartoons, on banners and signs at events promoting peace (such as the Olympic Games, at various anti-war/anti-violence protests, etc.), and in pacifist literature. A person who is a pacifist is sometimes referred to as a dove. (Similarly, in American politics, a person who advocates the use or threat of military strength can be referred to as a hawk.)
Rock pigeons selectively bred for their ability to home over long distances, called homing pigeons, have served humans in times of war as war pigeons, and have even been awarded war medals to honor their services to humanity. These include the homing pigeon, Cher Ami, who received the French Croix de guerre for services during wartime, and who is now enshrined in the Smithsonian Institution, and G.I. Joe, who received the Dickin Medal for his role in preventing the bombing of an Italian village of over 1,000 people.
Several species of pigeon or dove are used as food, and probably any could be; the powerful breast muscles characteristic of the family make excellent meat. In Europe, the wood pigeon is commonly shot as a game bird, while rock pigeons were originally domesticated as a food species, and many breeds were developed for their meat-bearing qualities.
Doves are Kosher, and they and turtle doves are the only birds that may be used for a Korban. Other kosher birds may be eaten, but not brought as a Korban.
Doves and pigeons also offer aesthetic beauty, with their diverse colors and patterns.
The extinction of the passenger pigeon (Ectopistes migratorius) is a common example of human over-exploitation. The passenger pigeon or wild pigeon was a species of Columbidae that was once the most common bird in North America. It is estimated that there were as many as five billion passenger pigeons in the United States at the time Europeans colonized North America. They lived in enormous flocks, and during migration, it was possible to see flocks of them a mile (1.6 km) wide and 300 miles (500 km) long, taking days to pass overhead. The primary factor in their decline emerged when pigeon meat was commercialized as a cheap food for slaves and the poor in the nineteenth century, resulting in hunting on a massive scale. By 1914, they were extinct.
Systematics and evolution
The Columbidae family is a highly coherent group with no members showing obvious links with other bird families, or vice versa. The dodo and solitaires are clearly related, but equally lacking in obvious links with other bird families. The limited fossil record also consists only of unequivocal Columbidae species. Links to the sandgrouse and parrots have been suggested, but resemblances to the first group are considered due to convergent evolution and the second depend on the parrot-like features of the tooth-billed pigeon. However, the distinctive features of that bird seem to have arisen from its specialized diet rather than a real relationship to the parrots.
The family is usually divided into five subfamilies, but this may be inaccurate. For example, the American ground and quail doves, which are usually placed in the Columbinae, seem to be two distinct subfamilies. Basically, the conventional treatment had 2 large subfamilies, one for the fruit-doves, imperial pigeons and fruit-pigeons, and another for nearly all of the remaining species. Additionally, there were 3 monotypic subfamilies, one each for the genera Goura, Otidiphaps, and Didunculus. The old subfamily Columbinae consists of 5 distinct lineages, whereas the other 4 groups are more or less accurate representations of the evolutionary relationships.
The order presented here, with nine subfamilies, follows Baptista et al. (1997) with some updates (Johnson and Clayton 2000; Johnson et al. 2001; Shapiro et al. 2002). In addition, some would include a subfamily Raphinae, with the the dodo and Rodrigues solitaire, rather than placing them in own family, pending better material evidence of their exact relationships. The dodo and Rodrigues solitaire are in all likelihood part of the Indo-Australian radiation that produced the 3 small subfamilies mentioned above, with the fruit-doves and pigeons (including the Nicobar pigeon).
Note that the arrangement of genera and naming of subfamilies is in some cases provisional because analyzes of different DNA sequences yield results that differ, often radically, in the placement of certain (mainly Indo-Australian) genera. This ambiguity seems to confirm that the first pigeons evolved in the Australasian region, and that the "Treronidae" and allied forms (crowned and pheasant pigeons, for example) represent the earliest radiation of the group.
Exacerbating these issues, columbids are not well represented in the fossil record. No truly primitive forms have been found to date. The genus Gerandia which most likely belongs to the Columbinae has been described from Early Miocene deposits of France. Apart from that, all other fossils belong to extant genera.
Subfamily Columbinae - typical pigeons & doves
Genus Columba including Aplopelia - Old World pigeons (33-34 living species, 2-3 recently extinct)
Genus Streptopelia including Stigmatopelia and Nesoenas - turtledoves (14-18 living species)
Genus Patagioenas - American pigeons; formerly included in Columba (17 species)
- Barred Cuckoo-dove, Macropygia unchall
- Slender-billed Cuckoo-dove, Macropygia amboinensis
- Brown Cuckoo-dove, Macropygia phasianella
- Dusky Cuckoo-dove, Macropygia magna
- Andaman Cuckoo-dove, Macropygia rufipennis
- Philippine Cuckoo-dove, Macropygia tenuirostris
- Ruddy Cuckoo-dove, Macropygia emiliana
- Black-billed Cuckoo-dove, Macropygia nigrirostris
- Mackinlay's Cuckoo-dove, Macropygia mackinlayi
- Little Cuckoo-dove, Macropygia ruficeps
Genus Reinwardtoena (3 species)
Genus Turacoena (2 species)
Subfamily N.N. - Bronzewings and relatives
Genus Turtur - African wood-doves (5 species; tentatively placed here)
Genus Oena - Namaqua Dove (tentatively placed here)
Genus Chalcophaps (2 species)
Genus Henicophaps (2 species)
Genus Phaps (3 species)
Genus Ocyphaps - Crested Pigeon
Genus Geophaps (3 species)
Genus Petrophassa - rock-pigeons (2 species)
Genus Geopelia (3-5 species)
Subfamily Leptotilinae - Zenaidine and quail-doves
Genus Zenaida (7 species)
Genus Ectopistes - Passenger Pigeon (extinct; 1914)
- White-tipped Dove, Leptotila verreauxi
- White-faced Dove, Leptotila megalura
- Grey-fronted Dove, Leptotila rufaxilla
- Grey-headed Dove, Leptotila plumbeiceps
- Pallid Dove, Leptotila pallida
- Brown-backed Dove, Leptotila battyi
- Grenada Dove, Leptotila wellsi
- Caribbean Dove, Leptotila jamaicensis
- Grey-chested Dove, Leptotila cassini
- Ochre-bellied Dove, Leptotila ochraceiventris
- Tolima Dove, Leptotila conoveri
Genus Geotrygon - quail-doves
- Purplish-backed Quail-dove, Geotrygon lawrencii
- Veracruz Quail-dove, Geotrygon carrikeri
- Costa Rica Quail-dove, Geotrygon costaricensis
- Russet-crowned Quail-dove, Geotrygon goldmani
- Sapphire Quail-dove, Geotrygon saphirina
- Grey-headed Quail-dove, Geotrygon caniceps
- Hispaniolan Quail-dove, Geotrygon (caniceps} leucometopius
- Crested Quail-dove, Geotrygon versicolor
- Rufous-breasted Quail-dove, Geotrygon chiriquensis
- Olive-backed Quail-dove, Geotrygon veraguensis
- White-faced Quail-dove, Geotrygon albifacies
- Lined Quail-dove, Geotrygon linearis
- White-throated Quail-dove, Geotrygon frenata
- Key West Quail-dove, Geotrygon chrysia
- Bridled Quail-dove, Geotrygon mystacea
- Violaceous Quail-dove, Geotrygon violacea
- Ruddy Quail-dove, Geotrygon Montana
- Blue-headed Quail-dove, Starnoenas cyanocephala
Subfamily Columbininae - American ground doves
- Common Ground Dove, Columbina passerina
- Plain-breasted Ground Dove, Columbina minuta
- Ecuadorian Ground Dove, Columbina buckleyi
- Ruddy Ground Dove, Columbina talpacoti
- Picui Dove, Columbina picui
- Croaking Ground Dove, Columbina cruziana
- Blue-eyed Ground Dove, Columbina cyanopis
- Blue Ground Dove, Claravis pretiosa
- Purple-winged Ground Dove, Claravis godefrida
- Maroon-chested Ground-dove, Claravis mondetoura
- Bare-faced Ground Dove, Metriopelia ceciliae
- Moreno's Ground Dove, Metriopelia morenoi
- Black-winged Ground Dove, Metriopelia melanoptera
- Golden-spotted Ground Dove, Metriopelia aymara
Genus Scardafella - possibly belongs into Columbina
- Inca Dove, Scardafella inca
- Scaled Dove, Scardafella squammata
- Long-tailed Ground Dove, Uropelia campestris...
Subfamily N.N. - Indopacific ground doves
Genus Gallicolumba (16-17 living species, 3-4 recently extinct)
- Thick-billed Ground Pigeon, Trugon terrestris
Subfamily Otidiphabinae - Pheasant Pigeon
Genus Otidiphaps - Pheasant Pigeon
Subfamily Didunculinae - Tooth-billed Pigeon
- Tooth-billed Pigeon, Didunculus strigirostris
- Tongan Tooth-billed Pigeon, Didunculus placopedetes - prehistoric
Subfamily Gourinae - crowned pigeons
Subfamily N.N. ("Treroninae") - green and fruit-doves and imperial pigeons
Genus Ducula - imperial-pigeons
- Pink-bellied Imperial Pigeon, Ducula poliocephala
- White-bellied Imperial Pigeon, Ducula forsteni
- Mindoro Imperial Pigeon, Ducula mindorensis
- Grey-headed Imperial Pigeon, Ducula radiata
- Grey-necked Imperial Pigeon, Ducula carola
- Green Imperial Pigeon, Ducula aenea
- White-eyed Imperial Pigeon, Ducula perspicillata
- Blue-tailed Imperial Pigeon, Ducula concinna
- Pacific Imperial Pigeon, Ducula pacifica
- Micronesian Imperial Pigeon, Ducula oceanica
- Polynesian Imperial Pigeon, Ducula aurorae
- Nukuhiva Imperial Pigeon, Ducula galeata
- Red-knobbed Imperial Pigeon, Ducula rubricera
- Spice Imperial Pigeon, Ducula myristicivora
- Purple-tailed Imperial Pigeon, Ducula rufigaster
- Cinnamon-bellied Imperial Pigeon, Ducula basilica
- Finsch's Imperial Pigeon, Ducula finschii
- Shining Imperial Pigeon, Ducula chalconota
- Island Imperial Pigeon, Ducula pistrinaria
- Pink-headed Imperial Pigeon, Ducula rosacea
- Christmas Imperial Pigeon, Ducula whartoni
- Grey Imperial Pigeon, Ducula pickeringii
- Peale's Imperial Pigeon, Ducula latrans
- Chestnut-bellied Imperial Pigeon, Ducula brenchleyi
- Vanuatu Imperial Pigeon, Ducula bakeri
- New Caledonian Imperial Pigeon, Ducula goliath
- Pinon's Imperial Pigeon, Ducula pinon
- Bismarck Imperial Pigeon, Ducula melanochroa
- Collared Imperial Pigeon, Ducula mullerii
- Zoe's Imperial Pigeon, Ducula zoeae
- Mountain Imperial Pigeon, Ducula badia
- Dark-backed Imperial Pigeon, Ducula lacernulata
- Timor Imperial Pigeon, Ducula cineracea
- Pied Imperial Pigeon, Ducula bicolor
- Torresian Imperial Pigeon, Ducula spilorrhoa
- White Imperial Pigeon, Ducula luctuosa
Genus Lopholaimus - Topknot Pigeon
- Kererū Hemiphaga novaseelandiae
- Parea Hemiphaga chathamensis
- Sombre Pigeon, Cryptophaps poecilorrhoa
Genus Gymnophaps - mountain-pigeons
- Papuan Mountain-pigeon Gymnophaps albertisii
- Long-tailed Mountain-pigeon Gymnophaps mada
- Pale Mountain-pigeon Gymnophaps solomonensis
Genus Ptilinopus - fruit-doves (some 50 living species, 1-2 recently extinct)
Genus Natunaornis - Viti Levu Giant Pigeon (prehistoric)
- Cloven-feathered Dove, Drepanoptila holosericea
Genus Alectroenas - blue pigeons
- Madagascar Blue Pigeon, Alectroenas madagascariensis
- Comoro Blue Pigeon, Alectroenas sganzini
- Seychelles Blue Pigeon, Alectroenas pulcherrima
- Farquhar Blue Pigeon, Alectroenas sp. (extinct)
- Mauritius Blue Pigeon, Alectroenas nitidissima (extinct)
- Rodrigues Pigeon "Alectroenas" rodericana (extinct; probably distinct genus)
- Nicobar Pigeon, Caloenas nicobarica
- Greater Maned Pigeon, Caloenas canacorum (prehistoric)
- Liverpool Pigeon, "Caloenas" maculata - extinct; probably distinct genus
Genus Treron - green pigeons
- Cinnamon-headed Green Pigeon, Treron fulvicollis
- Little Green Pigeon, Treron olax
- Pink-necked Green Pigeon, Treron vernans
- Orange-breasted Green Pigeon, Treron bicincta
- Pompadour Green Pigeon, Treron pompadora
- Thick-billed Green Pigeon, Treron curvirostra
- Grey-cheeked Green Pigeon, Treron griseicauda
- Sumba Green Pigeon, Treron teysmannii
- Flores Green Pigeon, Treron floris
- Timor Green Pigeon, Treron psittacea
- Large Green Pigeon, Treron capellei
- Yellow-footed Green Pigeon, Treron phoenicoptera
- Bruce's Green Pigeon, Treron waalia
- Madagascar Green Pigeon, Treron australis
- African Green Pigeon, Treron calva
- Pemba Green Pigeon, Treron pembaensis
- Sao Tome Green Pigeon, Treron sanctithomae
- Pin-tailed Green Pigeon, Treron apicauda
- Sumatran Green Pigeon, Treron oxyura
- Yellow-vented Green Pigeon, Treron seimundi
- Wedge-tailed Green Pigeon, Treron sphenura
- White-bellied Green Pigeon, Treron sieboldii
- Whistling Green Pigeon, Treron formosae
Genus Phapitreron - brown doves
- White-eared Brown Dove, Phapitreron leucotis
- Amethyst Brown Dove, Phapitreron amethystina
- Dark-eared Brown Dove, Phapitreron cinereiceps
Genus Leucosarcia - Wonga Pigeon
Genus Microgoura - Choiseul Crested Pigeon (extinct; early 20th century)
- St Helena Dove, Dysmoropelia dekarchiskos (extinct)
- Henderson Island Archaic Pigeon, Columbidae gen. et sp. indet. (prehistoric)
- Baptista, L. F., P. W. Trail, and H. M. Horblit. 1997. Order Columbiformes. In J. del Hoyo, A. Elliott, and J. Sargatal, eds., Handbook of Birds of the World, Volume 4: Sandgrouse to Cuckoos. Barcelona: Lynx Edicions. ISBN 8487334229.
- Crome, F. H. J. 2004. Columbiformes (pigeons, doves, and dodos). Pages 241 to 246 in M. Hutchins, D. A. Thoney, and M. C. McDade, eds. Grzimek's Animal Life Encyclopedia, Vol. 9: Birds II. 2nd ed. Detroit: Gale. 17 vols. ISBN 0787653624.
- Gibbs, D., E. Barnes, and J. Cox. 2001. Pigeons and Doves: A Guide to the Pigeons and Doves of the World. Robertsbridge: Pica. ISBN 1873403607.
- Johnson, K. P., and D. H. Clayton. 2000. Nuclear and mitochondrial genes contain similar phylogenetic signal for pigeons and doves (Aves: Columbiformes). Molecular Phylogenetics and Evolution 14(1): 141–151. Retrieved November 3, 2007.
- Johnson, K. P., S. de Kort, K. Dinwoodey, A. C. Mateman, C. ten Cate, C. M. Lessells, and D. H. Clayton. 2001. A molecular phylogeny of the dove genera Streptopelia and Columba. Auk 118(4): 874-887. Retrieved November 3, 2007.
- Shapiro, B., D. Sibthorpe, A. Rambaut, J. Austin, G. M. Wragg, O. R. Bininda-Emonds, P. L. M. Lee, and A. Cooper. 2002. Flight of the dodo. Science 295: 1683. Retrieved November 3, 2007.
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