Orochelidon flavipes

Life-forms

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Archosauromorpha
Cladus: Crurotarsi
Divisio: Archosauria
Cladus: Avemetatarsalia
Cladus: Ornithodira
Subtaxon: Dinosauromorpha
Cladus: Dinosauriformes
Cladus: Dracohors
Cladus: Dinosauria
Cladus: Saurischia
Cladus: Eusaurischia
Subordo: Theropoda
Cladus: Neotheropoda
Cladus: Averostra
Cladus: Tetanurae
Cladus: Avetheropoda
Cladus: Coelurosauria
Cladus: Tyrannoraptora
Cladus: Maniraptoromorpha
Cladus: Maniraptoriformes
Cladus: Maniraptora
Cladus: Pennaraptora
Cladus: Paraves
Cladus: Eumaniraptora
Cladus: Avialae
Infraclassis: Aves
Cladus: Avebrevicauda
Cladus: Pygostylia
Cladus: Ornithothoraces
Cladus: Ornithuromorpha
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Cladus: Neoaves
Cladus: Telluraves
Cladus: Australaves
Ordo: Passeriformes
Subordo: Passeri
Infraordo: Passerida
Superfamilia: Sylvioidea

Familia: Hirundinidae
Genus: Orochelidon
Species: Orochelidon flavipes
Name

Orochelidon flavipes (Chapman, 1922)

Holotype: AMNH 169932, adult ♀, 7 Apr 1921
Type locality: Maraynioc, 10850 ft., Junín, Peru.

Synonyms

Pygochelidon flavipes (protonym)
Notiochelidon flavipes (Chapman, 1922)

References
Primary references

American Museum Novitates 30: p. 8
Additional references

Sheldon, F.H., Whittingham, L.A., Moyle, R.G., Slikas, E. & Winkler, D.W. 2005. Phylogeny of swallows (Aves: Hirundinidae) estimated from nuclear and mitochondrial DNA sequencing. Molecular Philogenetics and Evolution. 35: 254–270. DOI: .1016/j.ympev.2004.11.008 Open access Reference page.

Vernacular names
English: Pale-footed Swallow
español: Golondrina paticlara
français: Hirondelle de Chapman
svenska: Roststrupesvala

The pale-footed swallow (Orochelidon flavipes) is a species of bird in the family Hirundinidae. It is found in the northern Andes, from Venezuela to Bolivia. It is monotypic.

Its natural habitat is subtropical or tropical moist montane forests. They are usually seen in small flocks, occasionally with the blue-and-white swallow.

They are classified as a least-concern species by the International Union for Conservation of Nature (IUCN).
Taxonomy and etymology

This swallow is monotypic.[2]

The pale-footed swallow is also known as the cloud-forest swallow, supposedly because it is known to reside in cloud forests.[2][3]
Description

This swallow has an average length of 12 cm (4.7 in) and an average weight of 10.6 g (0.37 oz). It has dark, glossy blue upperparts, with the wing, tail, and undertail coverts being more black than the rest. They have a dusky chin and a throat coloured cinnamon-buff. The white chest is tinged cinnamon-buff. The belly is also white. They have blackish-brown underwing coverts, axillars, flanks, and tibial feathers. They have a black bill with pink mouth-lining and a dark brown iris. They have a slightly notched tail. Their lower legs and toes are made of pink flesh. The sexes are similar, and the immature swallows of this species are similar, except their undertail coverts have white or pale edges.[2][3][4]

These birds are not to be confused with the very similar blue-and-white swallow, which can be differentiated by the pale-footed swallow's blackish flanks, and its faster flight. The pale-footed swallow is also slightly smaller than the blue-and-white swallow.[4][5]

The pale-footed swallow has a flight call frequently described as a dzreet. Their call can be differentiated from the call of the similar blue-and-white swallow by the fact that it is drier than that of the blue-and-white swallow. These swallows also have been known to use a call described as a trilled tre-e-e-ed.[2] The song is a series of trills and thin warbles, which is described as buzzy, but musical.[4]
Distribution

This swallow is native to the Andes in Bolivia, Colombia, Ecuador, Peru, and Venezuela.[1] It usually occurs only on the eastern slopes of the Andes, but it has been recorded on both slopes in the central Andes. They usually don't go below 2,600 m (8,500 ft) or above 3,300 m (10,800 ft) in Ecuador, and not below 2,000 m (6,600 ft) in Peru and 2,300 m (7,500 ft) in Bolivia. They do not usually go above 3,500 m (11,500 ft) in both Peru and Bolivia. In Venezuela, they have much less variation in elevation, usually not going below 2,200 m (7,200 ft) or above 2,400 m (7,900 ft) there. They have been seen as low as 1,550 m (5,090 ft) in Venezuela. Sometimes, in bad weather, they can be seen at lower altitudes. They are recorded as mainly residing in forests, especially humid ones.[4] They are most likely resident in their range.[2][3]
Behaviour
Breeding

Although when the females are fertile is unknown, it is known that the males are usually in breeding condition from July to September.[2] It is likely that both males and females incubate the eggs.[3]

This swallow most likely nests in burrows, like the similar blue-and-white swallow, in mossy cavities or in cavities created in roads. They prefer both subtropical and tropical montane forests and the upper cloud forest, avoiding clearings.[5] They also prefer elfin forests, usually residing just above the altitudes where the blue-and-white swallow resides, in comparably more forested areas.[2][3]
Diet

The pale-footed swallow is an aerial insectivore, eating insects in the air, usually over, and sometimes through, the forest canopy. They also forage over nearby clearings.[5] Their flight is usually quick, low, and erratic. They are known to backtrack numerous times. These swallows usually forage in groups of 10–15, but sometimes 50 birds can be seen together. They usually do not perch, but when they do, they do so on bare, dead limbs of forest trees. They have been seen to forage with the similar blue-and-white swallow and the brown-bellied swallow.[2][4][3][5]
Status

This swallow is classified as least-concern by the IUCN. The justification for this is the fact that the population is stable, there are most likely more than 10,000 adults of this species, and they have a large range. The breeding range is estimated to be 2,730,000 km2 (1,050,000 sq mi). The population size is unknown, but it is apparently fairly common.[1] Furthermore, it may be overlooked because of how similar it is to the blue-and-white swallow.[2][5]
References

BirdLife International (2016). "Orochelidon flavipes". IUCN Red List of Threatened Species. 2016: e.T22712131A94321161. doi:10.2305/IUCN.UK.2016-3.RLTS.T22712131A94321161.en. Retrieved 12 November 2021.
Turner, Angela (2013). del Hoyo, Josep; Elliott, Andrew; Sargatal, Jordi; Christie, David A.; de Juana, Eduardo (eds.). "Pale-footed Swallow (Notiochelidon flavipes)". Handbook of the Birds of the World Alive. Barcelona: Lynx Edicions. Retrieved December 26, 2016.
Turner, Angela K; Rose, Chris (1989). Swallows & Martins: An Identification Guide and Handbook. Boston: Houghton Mifflin. pp. 113–114. ISBN 0-395-51174-7.
Schulenberg, Thomas S.; Johnson, Tom (2012). Thomas S. Schulenberg (ed.). "Pale-footed Swallow (Orochelidon flavipes), Neotropical Birds Online". Retrieved December 23, 2016.

Ridgely, Robert (2009). Field guide to the songbirds of South America : the passerines. Austin, TX Philadelphia Washington, DC: University of Texas Press in association with the Academy of Natural Sciences of Philadelphia World Land Trust-US. ISBN 9780292717480.