1976 



Jenkins, D. , I. Newton and C. Brown. 1976. Structure and dynamics of a Mute 

 Swan population. Wildfowl 27: 77-82. 



Jogi , A., J. Lipsberg and V. Nedzinskas. 1976. [Numbers and seasonal distri- 

 bution of the East Baltic population of the Mute Swan.] Pp. 175-184 in 

 E. Kumari (ed.) Bird migration. Tallinn. [In Russian with English sum- 

 mary. ] 



Mathiasson, S. 1976. Some aspects on learned behaviour and tradition in the 



migratory habits of Mute Swan with special reference to Swedish swan popu- 

 lation. Pp. 197-208 _in E. Kumari (ed.) Bird migration. Tallinn. 



Tenuovo, R. 1976. The Mute Swan Cygnus olor in Finland. Ornis Fenn. 53: 

 147-149. 



Zusman, I. N. , S. F. Lyashenko and V. S. Nedzinskas. 1976. [Morpho-ecologi- 

 cal adaptations in early embryogenesis of Cygnus olor . ] Zool. Zh. 55: 

 255-266. [In Russian with English summary.] 



1975 



Owen, M. and C. J. Cadbury. 1975. The ecology and mortality of swans at the 

 Ouse Washes, England. Wildfowl 26: 31-42. 



Reese, J. G. 1975. Productivity and management of feral Mute Swans in Chesa- 

 peake Bay. J. Wildl. Manage. 39: 280-286. 



1974 



Jensen, H. 1974. Mageskift og bigami hos Knopsvane ( Cygnus olor Gm.). [Di- 

 vorce and bigamy in the Mute Swan ( Cygnus olor Gm.).] Dan. Fugle 8: 149- 

 160. [In Danish with English summary.] 



Lund, H. M.-K. 1974. Tidlig eggleggende Knoppsvane i Ostfold. [Early egg 

 laying in the Mute Swan.] Fauna 27: 234. [In Norwegian with English 

 summary. ] 



1973 



Forster, R. and G. Wagner. 1973. Der Hockerschwan Cygnus olor in der Nord- 



ostschweiz. Ornithol. Beob. 70: 67-80. [In German with French summary.] 



Mathiasson, S. 1973a. A moulting population of non-breeding Mute Swans with 

 special reference to flight feather moult, feeding ecology and habitat 

 selection. Wildfowl 24: 43-53. 



. 1973b. Moulting grounds of Mute Swans ( Cygnus olor ) in Sweden, their 



origin and relation to the population dynamics of Mute Swans in the Baltic 

 area. Viltrevy 8: 399-452. 



41 



