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Find link is a tool written by Edward Betts.searching for Robert S. Ridgely 20 found (25 total)
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Carduelis spp. show several specific polytomies". Ardeola. 53: 1–17. Robert S. Ridgely; Tudor Guy (1989). The Birds of South America: Volume 1: The OscineList of country and regional avifaunas (967 words) [view diff] exact match in snippet view article find links to article
of Ecuador, by Robert S. Ridgely and Paul J. Greenfield, Cornell University Press, 2001 The Birds of South America, by Robert S. Ridgely and Guy TudorSpeculum feathers (298 words) [view diff] exact match in snippet view article find links to article
Northern Tanzania. Princeton University Press. ISBN 0-691-01022-6. Robert S. Ridgely & John A. Gwynne, Jr. (1989). Birds of Panama with Costa Rica, NicaraguaFork-tailed flycatcher (2,009 words) [view diff] exact match in snippet view article find links to article
H. (July 2010). "Field Guide to the Songbirds of South America.— Robert S. Ridgely and Guy Tudor . 2009. University of Texas Press, Austin. ISBN 9780292717480"Brown-chested martin (231 words) [view diff] exact match in snippet view article find links to article
UK.2020-3.RLTS.T22712092A137688210.en. Retrieved 11 November 2021. Robert S. Ridgely and Guy Tudor, Field guide to the songbirds of South America: theCrested bobwhite (469 words) [view diff] exact match in snippet view article find links to article
Birds. University of Chicago Press. p. 447. ISBN 978-0-226-05641-8. Robert S. Ridgely; John A. Gwynne (June 1992). A Guide to the Birds of Panama: WithBlack-chinned siskin (355 words) [view diff] exact match in snippet view article find links to article
UK.2018-2.RLTS.T22720395A132138839.en. Retrieved 13 November 2021. Robert S. Ridgely; Tudor Guy (1989). The Birds of South America: Volume 1: The OscineThick-billed siskin (315 words) [view diff] exact match in snippet view article find links to article
UK.2018-2.RLTS.T22720380A132138421.en. Retrieved 12 November 2021. Robert S. Ridgely; Guy Tudor (2009). Field Guide to the Songbirds of South America:Black-cheeked gnateater (446 words) [view diff] exact match in snippet view article find links to article
Kingdom: Oxford University Press. pp. 431, 804. ISBN 0-19-910207-4. Robert S. Ridgely; Guy Tudor; William L. Brown (1994). The Birds of South America: TheBlue-rumped manakin (112 words) [view diff] exact match in snippet view article find links to article
T22701056A210588071. Retrieved 24 July 2022. "The Birds of Ecuador by Robert S. Ridgely & Paul Greenfield. Cornell University Press (2001), ISBN 978-0-8014-8722-4Bare-throated tiger heron (368 words) [view diff] exact match in snippet view article find links to article
Birding.typepad.com Archived January 23, 2010, at the Wayback Machine Robert S. Ridgely and John A. Gwynne - Birds of Panama with Costa Rica, Nicaragua andRufous wren (462 words) [view diff] exact match in snippet view article find links to article
(Cinnycerthia unirufa) (Lafresnaye, 1840)". Avibase. Retrieved 2015-01-18. Robert S. Ridgely; Guy Tudor (1 June 2009). Field Guide to the Songbirds of South America:Amazonian umbrellabird (702 words) [view diff] exact match in snippet view article find links to article
Retrieved 12 November 2021. The Birds of Ecuador, Vol. 2: Field Guide, Robert S. Ridgely & Paul J. Greenfield, Cornell University Press (2001). ISBN 978-0-8014-8721-7Yellow-billed jacamar (815 words) [view diff] exact match in snippet view article find links to article
· Yellow-billed Jacamar · Galbula albirostris" (Audio recording). Robert S. Ridgely (July 1994). "XC274963 · Yellow-billed Jacamar · Galbula albirostrisYellow-bellied chat-tyrant (685 words) [view diff] exact match in snippet view article find links to article
University Press, 2007, p. 463.] Itis.gov [1] For Taxonomic Information Robert S. Ridgely, Guy Tudor. Songbirds of South America: The Passerines. UniversitySerra antwren (1,597 words) [view diff] exact match in snippet view article find links to article
museum.lsu.edu/~Remsen/SACCBaseline.htm retrieved November 27, 2023 Robert S. Ridgely; Guy Tudor (2009). Field Guide to the Songbirds of South America:List of ornithologists (3,020 words) [view diff] exact match in snippet view article find links to article
John Richardson – Scotland/England Charles Wallace Richmond – US Robert S. Ridgely – US John Livzey Ridgway – US Robert Ridgway – US Joseph Harvey RileyGreater yellow-headed vulture (2,402 words) [view diff] exact match in snippet view article find links to article
413–416. doi:10.2307/1367720. JSTOR 1367720. The Birds of Ecuador by Robert S. Ridgely & Paul Greenfield. Cornell University Press (2001), ISBN 978-0-8014-8722-4Masked crimson tanager (1,040 words) [view diff] exact match in snippet view article find links to article
S2CID 32907534. Archived from the original (PDF) on 29 September 2011. Robert S. Ridgely; Guy Tudor (2009). Field Guide to the Songbirds of South America:Stub-tailed spadebill (1,721 words) [view diff] exact match in snippet view article find links to article
"The Birds of South America, Volume II. The Suboscine Passerines Robert S. Ridgely Guy Tudor". The Auk. 114 (1): 147–152. doi:10.2307/4089085. ISSN 0004-8038