Issue Number 1

1	Sæther, B-E. & Lindén, H.: Editorial

3	Pace III, R.M., Hohman, W.L. & Custer, T.W.: Lead effects on body composition and organ size of wintering canvasbacks Aythya valisineria in Louisiana - Original Articles

11	Picozzi, N., Moss, R. & Kortland, K.: Diet and survival of capercaillie Tetrao urogallus chicks in Scotland - Original Articles

25	Helle, P., Kurki, S. & Lindén, H.: Change in the sex ratio of the Finnish capercaillie Tetrao urogallus population - Original Articles

33	Tompkins, D.M.: Impact of nest-harvesting on the reproductive success of black-nest swiftlets Aerodramus maximus - Original Articles

37	Sjöberg, M., McConnell, B. & Fedak, M.: Haulout patterns of grey seals Halichoerus grypus in the Baltic Sea - Original Articles

49	Reimers, E.: Foetal sex ratios in wild reindeer Rangifer tarandus in relation to maternal condition and age - Original Articles

55	Borg, C. & Toft, S.: Value of the aphid Rhopalosiphum padi as food for grey partridge Perdix perdix chicks - Short communication

59	Guidelines to Authors

63	Indices of WILDLIFE BIOLOGY, volume 4