Egg quality in a precocial bird - the effect of laying order, offspring sex, and maternal age in black grouse (Tetrao tetrix) Tekijä Rantanen, Elina

Egg quality depends on mother's food availability and egg laying order in the magpie (Pica pica) Tekijä Hämäläinen, Jenny

Differences in egg quality and breeding success between rural and urban magpies Tekijä Timonen, Jonna