ITIS Standard Report Page: Petrochelidon pyrrhonota hypopolia
… Petrochelidon pyrrhonota hypopolia TSN 178459 … vertebrado, vertebrates, vertébrés : Class: Aves — Birds, oiseaux
www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=178459

ITIS Standard Report Page: Petrochelidon pyrrhonota
… Petrochelidon pyrrhonota hypopolia … Petrochelidon pyrrhonota … Chief, Bird Section, U.S.G.S. – B.R.D. – P.W.R.C. Reference for: Petrochelidon pyrrhonota
www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=178455&source

Comprehensive Report Species – Petrochelidon pyrrhonota
Petrochelidon pyrrhonota – (Vieillot, 1817) Cliff Swallow … only four are likely valid (hypopolia indistinct from pyrrhonota; … Cliff Swallow (Hirundo pyrrhonota). In: The Birds of …
www.natureserve.org/explorer/servlet/NatureServe?searchSpeciesUid=ELEMENT_GLOBAL.2.101677

Petrochelidon pyrrhonota (Vieillot, 1817) – Encyclopedia of Life
… pyrrhonota (Vieillot, 1817) (Petrochelidon pyrrhonota) in … Petrochelidon pyrrhonota pyrrhonota + Petrochelidon pyrrhonota hypopolia + … Annotated checklist of bird and mammal …
www.eol.org/pages/1050439

Petrochelidon pyrrhonota (Vieillot, 1817) – Encyclopedia of Life
Petrochelidon pyrrhonota (Vieillot, 1817) (American Cliff … Petrochelidon pyrrhonota pyrrhonota + Petrochelidon pyrrhonota hypopolia + … Annotated checklist of bird and mammal …
www.eol.org/pages/1050439?category_id=9

SYSTEMATIC REVIEW, INTERGRADATION, AND CLINAL VARIATION IN CLIFF …
… races or subspecies of the Cliff Swallow (Petrochelidon pyrrhonota) have … birds as being intermediate between hypopolia and California coastal birds representing pyrrhonota, but he …
elibrary.unm.edu/sora/Auk/v093n01/p0066-p0077.pdf

Geographic Variation in Hirundo Pyrrhonota (Cliff Swallow) From …
… as did Miller (1941), that the Warner Valley birds are intermediate between hypopolia and nominate pyrrhonota. … On the supposed genus Petrochelidon. Bull. Br. Ornithol. Club 93 …
elibrary.unm.edu/sora/wb/v23n01/p0021-p0030.pdf

California Birds, Washington State Birds during FONT’s Birding Tours
Birds found during FONT West Coast USA Tours in the Pacific Northwest … Petrochelidon pyrrhonota hypopolia; Bank Swallow _____ W 1 (in 1994) (also called Sand Martin)
www.focusonnature.com/BirdListPacificCoastTour.htm

Birdlist during FONT’s Washington State Tours
Washington State Birds during FONT West Coast USA Birding & Nature Tours … Petrochelidon pyrrhonota hypopolia; Bank Swallow _____ (also called S and Martin)
www.focusonnature.com/BirdListWashingtonStateTours.htm

Cliff Swallow – Sound to Sage
Description of bird breeding in … Petrochelidon pyrrhonota … west of Cascade crest and H.p. hypopolia in …
www.soundtosage.org/soundtosage/bird_detail.aspx?county_id=2&id=326

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