...2, Ridgway Orn... 
Frank M. Chapman 「Color Key to North American Birds」
...According to Ridgway (1916:13-17) the difference betweenC...
Emil K. Urban 「Birds from Coahuila, Mexico」
..." Ridgway (1914:280) listedC...
Emil K. Urban 「Birds from Coahuila, Mexico」
...—The only record of the Gray-breasted Martin in Coahuila was given by Ridgway (1904:42) when he listedP...
Emil K. Urban 「Birds from Coahuila, Mexico」
..." Ridgway (1901:252) listedA...
Emil K. Urban 「Birds from Coahuila, Mexico」
...Ridgway (1916:355), however, notes that "...
Robert L. Merz 「Jaw Musculature of the Mourning and White-winged Doves」
...hasbroucki Ridgway...
Richard F. Johnston 「The Breeding Birds of Kansas」
...Robert Ridgway says he first madethe acquaintance of the Purple Finchat Mt...
Various 「Birds Illustrated by Color Photography [February, 1898]」
...wardi Ridgway in southeast, and A...
Harrison B Tordoff 「Check-list of the Birds of Kansas」
...minima Ridgway, and B...
Harrison B Tordoff 「Check-list of the Birds of Kansas」
...hasbroucki Ridgway in south-central, O...
Harrison B Tordoff 「Check-list of the Birds of Kansas」
...borealis Ridgway has been reported in winterin east...
Harrison B Tordoff 「Check-list of the Birds of Kansas」
...propinquus Ridgway occurs in west, at least in migration, and irregularlyin other parts of state in winter...
Harrison B Tordoff 「Check-list of the Birds of Kansas」
...notabilis Ridgway...
Harrison B Tordoff 「Check-list of the Birds of Kansas」
...
Junco aikeni Ridgway...
Harrison B Tordoff 「Check-list of the Birds of Kansas」
...mearnsi Ridgway...
Harrison B Tordoff 「Check-list of the Birds of Kansas」
...Junco aikeni Ridgway...
Harrison B Tordoff 「Check-list of the Birds of Kansas」
...alascensis Ridgway occurs uncommonly (specimens from Douglas andHamilton counties)...
Harrison B Tordoff 「Check-list of the Birds of Kansas」
...—Size medium (see measurements); upper parts near OchraceousTawny (capitalized color terms after Ridgway, Color Standards and ColorNomenclature, Washington, D...
Rollin H. Baker 「Mammals from Tamaulipas, Mexico」
...Capitalized color-terms refer to Ridgway (1912)...
Robert L. Packard 「Speciation and Evolution of the Pygmy Mice, Genus Baiomys」
...In the descriptions of livingcolors the capitalized names are from Ridgway (1912)...
William E. Duellman 「A Review of the Middle American Tree Frogs of the Genus Ptychohyla」
便利！手書き漢字入力検索