Buff-bellied Pipit

Buff-bellied Pipit
American Pipit (A. r. rubescens) Rock Lake, Algonquin Provincial Park (Canada)
Conservation status
Least Concern (IUCN 3.1)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Family:	Motacillidae
Genus:	Anthus
Species:	A. rubescens
Binomial name
Anthus rubescens (Tunstall, 1771)
Synonyms
Anthus pensilvanicus Anthus spinoletta japonicus

The Buff-bellied Pipit (Anthus rubescens) is a small songbird found on both sides of the northern Pacific. It was first described by Marmaduke Tunstall in his 1771 Ornithologia Britannica.^[1]

Description and systematics

Like most other pipits, this is an undistinguished-looking species which usually can be seen to run around on the ground. The American Pipit has lightly streaked grey-brown upperparts and is diffusely streaked below on the buff breast and flanks. The belly is whitish, the bill and legs are dark. The Japanese Pipit is darker above and has bolder black streaking on its whiter underparts; its legs have a reddish hue.^[2]

The call is a squeaky sip.^[3]

It has two distinctive subspecies, but morphological and DNA sequence differences between them are rather pronounced and they might be considered distinct species pending further research:^[4]

• A. r. rubescens (Tunstall, 1771), American Pipit – breeds in northern North America, extending further south in mountainous areas
• A. r. japonicus, Japanese Pipit – breeds in most of eastern temperate Asia (including Japan)

This species is closely related to Rock Pipit (A. petrosus) and Water Pipit (A. spinoletta), all three forms having previously been considered conspecific. They can differentiated by their vocalizations and some visual cues, but Rock and Buff-bellied Pipit are not found sympatrically except as vagrant individuals, and the ranges of Buff-bellied and Water Pipits overlap only in a small area in Central Asia.^[5]

Ecology

Both subspecies of the Buff-bellied Pipit are migratory. The American Pipit winters on the Pacific coast of North America, and on the Atlantic coast from the southern USA to Central America. At least regarding the American Pipit, its wintering range seems to have expanded northwards in the 20th century and the birds seem to spend less time in winter quarters: in northern Ohio for example, the species was recorded as "not common" during migration in May and September/October in the 1900s, but today it is considered a "widespread migrant" in that region, found beween March and May and from late September to November, with many birds actually wintering this far north. Asian birds winter mainly from Pakistan east to and Southeast Asia, with occasional birds found as far north as Yunnan and some in Japan apparently being all-year residents or migrating but a little. The American and Asian subspecies are rare vagrants to Western and Eastern Europe, respectively.^[6]

Like its relatives, this species is insectivorous. The breeding habitat of Buff-bellied Pipit is tundra, but outside the breeding season it is found in open lightly vegetated areas, similar to those favoured by the Water Pipit (A. spinoletta).^[3]

It is a widespread and common species and not considered threatened by the IUCN.^[7]

Footnotes

References

• Alström, Per & Mild, Krister (1996): The identification of Rock, Water and Buff-bellied Pipits. Alula 2(4): 161–175.
• Bangs, Outram (1932): Birds of western China obtained by the Kelley-Roosevelts expedition. Field Mus. Nat. Hist. Zool. Ser. 18(11): 343-379. Fulltext at the Internet Archive
• BirdLife International (BLI) (2008). Anthus rubescens. In: IUCN 2008. IUCN Red List of Threatened Species. Downloaded on 14 May 2009.
• Henninger, W.F. (1906): A preliminary list of the birds of Seneca County, Ohio. Wilson Bull. 18(2): 47-60. DjVu fulltext PDF fulltext
• Leonovich, V.V.; Deminia, G.V. & Veprintseva, O.D. (1997): [On the taxonomy and phylogeny of pipits (Genus Anthus, Motacillidae, Aves) in Eurasia]. Biulleten Moskovskogo obshchestva ispytatelei prirody. Otdel biologicheskii. 102(2): 14–22. [Russian^{[verification needed]}]
• Nazarenko, Aleksandr Aleksandrovich (1978): О видовой самостоятельности голоценового конька – Anthus rubescens (Tunstall) Aves, Motacillidae [On species validity of Anthus rubescens (Tunstall) Aves: Motacillidae]. Biulleten Moskovskogo obshchestva ispytatelei prirody. Otdel biologicheskii. 57(11): 1743–1744. [Russian^{[verification needed]}]
• Ohio Ornithological Society (OOS) (2004): Annotated Ohio state checklist. Version of April 2004. PDF fulltext
• Svensson, Lars; Zetterström, Dan; Mullarney, Killian & Grant, Peter J. (1999): Collins Bird Guide. Harper & Collins, London. ISBN 0-00-219728-6
• Tunstall, Marmaduke (1771): Ornithologia Britannica: seu Avium omnium Britannicarum tam terrestrium, quam aquaticarum catalogus, sermone Latino, Anglico et Gallico redditus. J. Dixwell. London. [in Latin]
• Zink, R.M., Rohwer, S., Andreev, A.V. & Dittmann, D.L. (1995): Trans-Beringia comparisons of mitochondrial DNA differentiation in birds. Condor 97(3): 639–649. DjVu fulltext PDF fulltext

External links

Wikimedia Commons has media related to: Anthus rubescens

• American Pipit - Anthus rubescens - USGS Patuxent Bird Identification InfoCenter
• American Pipit Species Account - Cornell Lab of Ornithology
• American Pipit Information - South Dakota Birds and Birding
• Buff-bellied Pipit videos on the Internet Bird Collection
• American Pipit-(Anthus rubescens) photo gallery VIREO