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ScHULZ, H. (1947). Die Welt der Seevogel ein Fiihrer durch die Vogelbrutstatten 

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Scott, W. E. D. (1891-92). Observations on the birds of Jamaica, West Indies. 

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Selous, E. ( 1 905) . The bird-w atcher in the Shetlands. London, Dent. 



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Sergeant, D. E. (1951). Ecological relationships of the guillemots Uria aalge and 

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(1952). Little auks in Britain, 1948 to 1951. Brit. Birds, 45: 122-33. 



Serventy, D. L. (1939). Notes on cormorants. Emu, 38: 357-71. 



Serventy, D. L., Clancey, P. A. and Elliott, H. F. L (1953). The Derbyshire 

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Shufeldt, R. W. (19 16). The bird caves of the Bermudas and their former inhabit- 

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Sladen, W. J. L. (1952). Arctic skua in the Antarctic. Ibis, 94: 543. 



SoLLAS, W. J. (1924). Ancient hunters and their modern representatives. London, 

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Soper, J. D. (1928). A faunal investigation of southern Baffin Island. Bull. Nat. 

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(1934). Interesting bird records from southern Baffin Island. Canad. 



Field-Nat. 48: 41-44, 65-68, 79-82. 



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1 928- 1 929 and 1 930- 1 93 1, together with more recent records. Auk, 63: 1-24. 

 Southern, H. N. (1937). Habits of the common tern. Field, i6g: 290. 



(1939). The status and problem of the bridled guillemot. Proc. 



Zool. Soc. Lond. (A) log: 31-41. 



(1943). The two phases of Stercorarius parasiticus (Linnaeus). 



Ibis, 85: 443-85. 



— (1944). Dimorphism in Stercorarius pomarinus (Temminck). Ibis, 



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(1951). Change In status of the bridled guillemot after ten years. 



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Southern, H. N. and Reeve, E. C. R. (1941). Quantitative studies in the geo- 

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Southwell, T. (1904). On the whale fishery from Scotland, . . . Ann. Scot. Nat. 

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(1948). The tern colonies of the Dry Tortugas Keys. Auk, 65: 1-19. 



Stanford, W. P. (1953). Winter distribution of the grey phalarope. Phalaropus 

 fulicarius. Ibis, g^: 483-91. 



