Animalia > Chordata > Aves > Apodiformes > Apodidae > Apus > Apus unicolorApus unicolor (Plain Swift)Synonyms: Cypselus unicolor The plain swift (Apus unicolor) is a medium-sized swift. Although this bird is superficially similar to a barn swallow or house martin, it is not related to those passerine species. The resemblances between the groups are due to convergent evolution reflecting similar life styles. Swifts have very short legs that they use only for clinging to vertical surfaces. They never settle voluntarily on the ground, and spend most of their lives in the air, feeding on insects that they catch in their beaks. They drink on the wing. |
Uniqueness Scale: Similiar (0) Unique (100) Uniqueness & Vulnerability Scale: Similiar & Secure (0) Unique & Vulnerable (100) ED Score: 6.93185 EDGE Score: 2.07089 |
| Adult Weight [1] | 23 grams | | Birth Weight [2] | 2.4 grams |  | | Diet [3] | Carnivore (Invertebrates) | | Diet - Invertibrates [3] | 100 % | | Forages - Aerial [3] | 100 % | | | Clutch Size [4] | 2 | | Fledging [1] | 46 days | | Incubation [1] | 20 days | | Mating Display [2] | Non-acrobatic aerial display | | Maximum Longevity [1] | 21 years | | Snout to Vent Length [5] | 6 inches (15 cm) |
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| Name |
Location |
IBA Criteria |
Website |
Climate |
Land Use |
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Cuchillete de Buenavista-gully of La Torre-Los Alares |
Spain |
A1, A2, B2, B3, C1, C2, C6 |
 |
 |
 |
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Garajonay National Park |
Spain |
A1, A2, B2, B3, C1, C2, C6 |
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Gully of Ajuí-Betancuria |
Spain |
A1, A2, B2, B3, C1, C6 |
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Ilhas Desertas |
Portugal |
A1, A2, A4ii, B1ii, B2, B3, C1, C2, C6 |
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Ilhéus do Porto Santo |
Portugal |
A2, B3, C6 |
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La Palma laurel forest |
Spain |
A1, A2, B2, B3, C1, C2, C6 |
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Laurissilva |
Portugal |
A1, A2, B3, C1, C2, C6 |
|
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Los Gigantes coastal cliff |
Spain |
B2, B3, C6 |
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Los Molinos gully-Plain of La Laguna |
Spain |
A1, B2, B3, C1, C6 |
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Maciço Montanhoso Oriental |
Portugal |
A1, A2, A4ii, B1ii, B3, C1, C2, C6 |
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Mountain of Agua, gully of Los Cochinos and gully of Cuevas Negras |
Spain |
A1, A2, B2, B3, C1, C6 |
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Ponta de São Lourenço |
Portugal |
A2, A4ii, B1ii, B2, B3, C2, C6 |
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Ponta do Pargo |
Portugal |
A2, A4ii, B1ii, B2, B3, C2, C6 |
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Porto Santo Oeste |
Portugal |
A2, B2, B3, C6 |
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Tamadaba pine woodland |
Spain |
A2, B2, C6 |
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| Name |
Location |
Endemic |
Species |
Website |
|
Mediterranean Basin |
Algeria, Egypt, France, Greece, Israel, Jordan, Lebanon, Libya, Portugal, Spain, Syria, Tunisia, Turkey |
Yes |
 |
|
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 Attributes / relations provided by ♦ 1Storchová, Lenka; Hořák, David (2018), Data from: Life-history characteristics of European birds, Dryad, Dataset, https://doi.org/10.5061/dryad.n6k3n ♦ 2Terje Lislevand, Jordi Figuerola, and Tamás Székely. 2007. Avian body sizes in relation to fecundity, mating system, display behavior, and resource sharing. Ecology 88:1605 ♦ 3Hamish Wilman, Jonathan Belmaker, Jennifer Simpson, Carolina de la Rosa, Marcelo M. Rivadeneira, and Walter Jetz. 2014. EltonTraits 1.0: Species-level foraging attributes of the world's birds and mammals. Ecology 95:2027 ♦ 4Jetz W, Sekercioglu CH, Böhning-Gaese K (2008) The Worldwide Variation in Avian Clutch Size across Species and Space PLoS Biol 6(12): e303. doi:10.1371/journal.pbio.0060303 ♦ 5Nathan P. Myhrvold, Elita Baldridge, Benjamin Chan, Dhileep Sivam, Daniel L. Freeman, and S. K. Morgan Ernest. 2015. An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96:3109 Ecoregions provided by World Wide Fund For Nature (WWF). WildFinder: Online database of species distributions, ver. 01.06 Wildfinder Database |
Species taxanomy provided by GBIF Secretariat (2022). GBIF Backbone Taxonomy. Checklist dataset https://doi.org/10.15468/39omei accessed via GBIF.org on 2023-06-13; License: CC BY 4.0
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