1958. Bergmann's Rule and obligatory overseas migration. Br. Birds 51(6): 209-232.
1902. The migration of birds with special reference to nocturnal flight. Wis. Nat. Hist. Soc. 2: 177-263.
1970. Goal orientation versus one-direction orientation in Teal (_Anas c. crecca_) during autumn migration. Ardea 58: 131-141.
1940. A preliminary report on some experiments on bird migration. Condor 42(2): 93-99.
1945. The role of the pituitary fat deposition and body weight in bird migration. Condor 47(3): 95-127.
1948. Bird migration and the concept of continental drift. Science (Wash., D. C.) 108: 23-30.
1941. Animal migration-periodic response theory. Auk 58: 463-505.
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1946. Color-banding California Gulls at Great Salt Lake, Utah. Bull. Univ. Utah, 37(3): 1-15.
1947. A preliminary study of physical basis of bird navigation. J. Appl. Physiol. 18(12): 1035-1063.
1951. A preliminary study of a physical basis of bird navigation. Part II. J. Appl. Physiol. 22(6): 746-760.
NOTE: For all North American species the authors have followed nomenclature in the 1957 edition of the A.O.U. Check-list. Also, we have incorporated the new names presented in the April 1973 issue of The Auk (volume 90, number 2, pages 411-419), the quarterly journal of the A.O.U. For other parts of the world we have used the most authoritative sources available.