Brown, Charles R.; Brown, Mary B.; Pyle, Peter; Patten, Michael A. (2017). "Cliff Swallow (Petrochelidon pyrrhonota)". The Birds of North America Online (بالإنجليزية). DOI:10.2173/bna.cliswa.03.
Johnson، Allison E.؛ Freedberg، Steven (2014). "Variable facial plumage in juvenile Cliff Swallows: A potential offspring recognition cue?". The Auk. ج. 131 ع. 2: 121–128. DOI:10.1642/AUK-13-127.1. ISSN:0004-8038.
Sibley، David (2016). The Sibley Field Guide to Birds of Eastern North America (ط. Second). New York: Borzoi Books - Knopf. ISBN:9780307957917. OCLC:945096007.
Johnson، Allison E.؛ Freedberg، Steven (2014). "Variable facial plumage in juvenile Cliff Swallows: A potential offspring recognition cue?". The Auk. ج. 131 ع. 2: 121–128. DOI:10.1642/AUK-13-127.1. ISSN:0004-8038.