المؤلفون: Spofford, Walter R.

المصدر: The Auk

وصف الملف: application/pdf

Relation: https://digitalcommons.usf.edu/auk/vol63/iss1/17; https://digitalcommons.usf.edu/context/auk/article/15895/viewcontent/p0085_p0087.pdf

الاتاحة: https://digitalcommons.usf.edu/auk/vol63/iss1/17
https://digitalcommons.usf.edu/context/auk/article/15895/viewcontent/p0085_p0087.pdf

المؤلفون: Herbert, Richard, Peterson, Roger T., Spofford, Walter R.

المصدر: The Auk

وصف الملف: application/pdf

Relation: https://digitalcommons.usf.edu/auk/vol60/iss2/30; https://digitalcommons.usf.edu/context/auk/article/15411/viewcontent/p0274_p0274.pdf

الاتاحة: https://digitalcommons.usf.edu/auk/vol60/iss2/30
https://digitalcommons.usf.edu/context/auk/article/15411/viewcontent/p0274_p0274.pdf

المؤلفون: Spofford, Walter R., Amadon, Dean

المصدر: Journal of Raptor Research

وصف الملف: application/pdf

Relation: https://digitalcommons.usf.edu/jrr/vol27/iss4/2; https://digitalcommons.usf.edu/context/jrr/article/2049/viewcontent/p00180_p00184.pdf

الاتاحة: https://digitalcommons.usf.edu/jrr/vol27/iss4/2
https://digitalcommons.usf.edu/context/jrr/article/2049/viewcontent/p00180_p00184.pdf

المؤلفون: Amadon, Dean, Steyn, Peter, Spofford, Walter R.

المصدر: Journal of Raptor Research

وصف الملف: application/pdf

Relation: https://digitalcommons.usf.edu/jrr/vol15/iss3/1; https://digitalcommons.usf.edu/context/jrr/article/1451/viewcontent/p00065_p00067.pdf

الاتاحة: https://digitalcommons.usf.edu/jrr/vol15/iss3/1
https://digitalcommons.usf.edu/context/jrr/article/1451/viewcontent/p00065_p00067.pdf

المؤلفون: Lee, David S, Spofford, Walter R

المساهمون: BioStor

المصدر: 102:693-698

URL الوصول: http://www.biodiversitylibrary.org/part/242401

المؤلفون: Lee, David S., Spofford, Walter R.

المصدر: The Wilson Bulletin, 1990 Dec 01. 102(4), 693-698.

URL الوصول: https://www.jstor.org/stable/4162941

المؤلفون: Anderson, John M., Erickson, Ray C., Munro, David A., Spofford, Walter R., West, George C., Evenden, Fred G.

المصدر: The Auk, 1968 Jan 01. 85(1), 117-126.

URL الوصول: https://www.jstor.org/stable/4083629

المؤلفون: Aldrich, John W., Graber, Richard R., Spofford, Walter R., West, George C., Cahalane, Victor H.

المصدر: The Auk, 1967 Jul 01. 84(3), 412-420.

URL الوصول: https://www.jstor.org/stable/4083090

المؤلفون: Ames, Peter L., Banko, Winston E., Black, C. T., Peakall, David B., Spofford, Walter R.

المصدر: The Auk, 1971 Oct 01. 88(4), 902-910.

URL الوصول: https://www.jstor.org/stable/4083847

المؤلفون: Spofford, Walter R.

المصدر: The Wilson Bulletin, 1949 Jun 01. 61(2), 86-90.

URL الوصول: https://www.jstor.org/stable/4157756

المؤلفون: Spofford, Walter R

المساهمون: BioStor

المصدر: 61:86-90

URL الوصول: http://www.biodiversitylibrary.org/part/208791

المؤلفون: Spofford, Walter R.

المصدر: The Auk, 1946 Jan 01. 63(1), 85-87.

URL الوصول: https://www.jstor.org/stable/4079915

المؤلفون: Spofford, Walter R.

المصدر: The Thoreau Society Bulletin, 1956 Jan 01(54), 1-1.

URL الوصول: https://www.jstor.org/stable/23397150

المؤلفون: Spofford, Walter R.

المصدر: Bird-Banding, 1964 Apr 01. 35(2), 123-124.

URL الوصول: https://www.jstor.org/stable/4511067

المؤلفون: Spofford, Walter R.

المصدر: The Wilson Bulletin, 1962 Jun 01. 74(2), 186-187.

URL الوصول: https://www.jstor.org/stable/4159048

المؤلفون: Peterson, Roger T., Spofford, Walter R.

المصدر: The Auk ; volume 60, issue 2, page 274-274 ; ISSN 0004-8038 1938-4254

مصطلحات موضوعية: Animal Science and Zoology, Ecology, Evolution, Behavior and Systematics

الاتاحة: http://dx.doi.org/10.2307/4079666