Columba liviacommon pigeon(Also: rock dove)

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Geographic Range

Wild Columba livia are native to Europe, North Africa, and southwestern Asia. Feral pigeons are found worldwide, including throughout all of North America. It should be noted that occurrence within this range is not evenly distributed (see habitat).

Habitat

Wild rock doves nest in crevices along rocky seaside cliffs, close to agriculture or open shrub vegetation. Feral pigeons live in old farm buildings in rural areas. In cities, the skyscrapers tend to take the place of their natural cliff surroundings.

Physical Description

The rock dove has a dark bluish-gray head, neck, and chest with glossy yellowish, greenish, and reddish-purple iridescence along its neck and wing feathers. Females tend to show less iridescence than the males. The bill is dark grayish-pink. Two dark bands across the wings are seen in most pigeons, and one bluish-gray band across the tail. Rock doves and feral pigeons can be divided into a large number of different phenotypes, or groups based on outward characteristics. Some of these classifications are the blue-bar, blue checker, dark checker, spread, and red phenotypes.

  • Average mass
    358.7 g
    12.64 oz
    AnAge

Reproduction

Pairs may be formed at any point during the year. These pairs are formed for life. Each bird works cooperatively on most aspects of reproduction and young-rearing. The male builds the nest, and the eggs are laid shortly after the nest is finished. Both males and females incubate the eggs. Eggs hatch approximately 19 days after being laid.

  • Average eggs per season
    2
    AnAge
  • Average time to hatching
    19 days
  • Average time to hatching
    18 days
    AnAge
  • Average age at sexual or reproductive maturity (female)
    Sex: female
    140 days
    AnAge
  • Average age at sexual or reproductive maturity (male)
    Sex: male
    140 days
    AnAge

Lifespan/Longevity

Behavior

Pigeons generally walk or run while bobbing their heads forward and backward. They fly with a steady and direct path. Pigeons are most often seen during daylight, seeking cover at night and in during the heat of the day, according to the climate. They flock while roosting, sunning, and feeding, but no play has been observed. In the nesting territory, both sexes are aggressive, pecking intruders on the head.

Communication and Perception

Food Habits

Rock doves feed in the early morning and in the mid-afternoon on the open ground. They eat mainly seeds. Studies of pigeons in a semi-rural part of Kansas found that their diet includes the following: 92% corn, 3.2% oats, 3.7% cherry, along with small amounts of knotweed, elm, poison ivy, and barley. In cities, feral pigeons also eat popcorn, cake, peanuts, bread, and currants. Female rock doves need to eat a diet somewhat higher in protein and calcium in order to have the nutritional resources to lay eggs.

Predation

Some common predators of feral pigeons in the North America are opossums (Didelphis virginiana), raccoons (Procyon lotor), great horned owls (Bubo virginianus), and eastern screech-owls (Otus asio). Other predators include the golden eagle (Aquila chrysaetos), American kestrels (Falco sparverius), and peregrine falcons (Falco peregrinus).

Economic Importance for Humans: Positive

Eaten by humans and used for laboratory research.

Economic Importance for Humans: Negative

A large number of pigeons living in a small area can be a nuisance to farmers. Some diseases (e.g., histoplasmosis) may be spread in pigeon droppings.

Conservation Status

Since pigeons are often fed by well-meaning city dwellers, their numbers are high. Wild rock doves also have no special status.

Other Comments

Feral pigeons have been used extensively in laboratories because they are domesticated and found in abundance throughout the world. These studies include flight mechanisms, thermoregulation, water metabolism, genetics of color patterns, and Darwinian evolutionary biology.

Contributors

Jennifer Roof (author), University of Michigan-Ann Arbor.

Glossary

Australian

Living in Australia, New Zealand, Tasmania, New Guinea and associated islands.

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Ethiopian

living in sub-Saharan Africa (south of 30 degrees north) and Madagascar.

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Nearctic

living in the Nearctic biogeographic province, the northern part of the New World. This includes Greenland, the Canadian Arctic islands, and all of the North American as far south as the highlands of central Mexico.

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Neotropical

living in the southern part of the New World. In other words, Central and South America.

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Palearctic

living in the northern part of the Old World. In otherwords, Europe and Asia and northern Africa.

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acoustic

uses sound to communicate

bilateral symmetry

having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. Synapomorphy of the Bilateria.

chaparral

Found in coastal areas between 30 and 40 degrees latitude, in areas with a Mediterranean climate. Vegetation is dominated by stands of dense, spiny shrubs with tough (hard or waxy) evergreen leaves. May be maintained by periodic fire. In South America it includes the scrub ecotone between forest and paramo.

chemical

uses smells or other chemicals to communicate

cosmopolitan

having a worldwide distribution. Found on all continents (except maybe Antarctica) and in all biogeographic provinces; or in all the major oceans (Atlantic, Indian, and Pacific.

desert or dunes

in deserts low (less than 30 cm per year) and unpredictable rainfall results in landscapes dominated by plants and animals adapted to aridity. Vegetation is typically sparse, though spectacular blooms may occur following rain. Deserts can be cold or warm and daily temperates typically fluctuate. In dune areas vegetation is also sparse and conditions are dry. This is because sand does not hold water well so little is available to plants. In dunes near seas and oceans this is compounded by the influence of salt in the air and soil. Salt limits the ability of plants to take up water through their roots.

endothermic

animals that use metabolically generated heat to regulate body temperature independently of ambient temperature. Endothermy is a synapomorphy of the Mammalia, although it may have arisen in a (now extinct) synapsid ancestor; the fossil record does not distinguish these possibilities. Convergent in birds.

forest

forest biomes are dominated by trees, otherwise forest biomes can vary widely in amount of precipitation and seasonality.

introduced

referring to animal species that have been transported to and established populations in regions outside of their natural range, usually through human action.

iteroparous

offspring are produced in more than one group (litters, clutches, etc.) and across multiple seasons (or other periods hospitable to reproduction). Iteroparous animals must, by definition, survive over multiple seasons (or periodic condition changes).

motile

having the capacity to move from one place to another.

native range

the area in which the animal is naturally found, the region in which it is endemic.

oceanic islands

islands that are not part of continental shelf areas, they are not, and have never been, connected to a continental land mass, most typically these are volcanic islands.

oriental

found in the oriental region of the world. In other words, India and southeast Asia.

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oviparous

reproduction in which eggs are released by the female; development of offspring occurs outside the mother's body.

rainforest

rainforests, both temperate and tropical, are dominated by trees often forming a closed canopy with little light reaching the ground. Epiphytes and climbing plants are also abundant. Precipitation is typically not limiting, but may be somewhat seasonal.

scrub forest

scrub forests develop in areas that experience dry seasons.

sexual

reproduction that includes combining the genetic contribution of two individuals, a male and a female

tactile

uses touch to communicate

tropical savanna and grassland

A terrestrial biome. Savannas are grasslands with scattered individual trees that do not form a closed canopy. Extensive savannas are found in parts of subtropical and tropical Africa and South America, and in Australia.

savanna

A grassland with scattered trees or scattered clumps of trees, a type of community intermediate between grassland and forest. See also Tropical savanna and grassland biome.

temperate grassland

A terrestrial biome found in temperate latitudes (>23.5° N or S latitude). Vegetation is made up mostly of grasses, the height and species diversity of which depend largely on the amount of moisture available. Fire and grazing are important in the long-term maintenance of grasslands.

visual

uses sight to communicate

References

Johnston, Richard F. Birds of North America No. 13, 1992. The American Ornithologists' Union.

Mosca, F. 2001. "Pigeons and Pigeon Genetics for Everyone" (On-line). Accessed May 8, 2001 at http://www.angelfire.com/ga3/pigeongenetics/.