Shevareva T. 1970.
Szijj J. 1972.
20
Geographical distribution of the main dabbling duck populations in the U.S.S.R. and the main directions of their migrations. Proc. Int. Reg. Meeting on Conservation of Wildfowl Resources, Leningrad, 1968. Moscow. 46-55.
Some suggested criteria for determining the international import-
ance of wetlands in the western Palearctic. Proc. Int. Conference on the Conservation of Wetlands and Waterfowl, Ramsar, 1971, I.W.R.B. 111-119.
Tablbot L.M. and Talbot M.H. 1965. Conservation of the Hong Kong Countryside.
The Government Printer, Hong Kong.
1965. The birds of the Palearctic fauna.
Vaurio C. 1965.
Webster M.A. 1972.
Non-passeriformes. Witherby.
Mai Po Nature Reserve. Unpubl. outline plan for reserve and bird park.
Webster M.A. 1973. Check-list of the Birds of Hong Kong. Swisss Worldwide, Hong
Kong.
Webster M. 1974. Conservation of the Deep Bay Marshes, Hong Kong.
Unpublished
paper presented to the XVIth. Meeting of the I.C.B.P., Canberra, 1974.