Long-term decline in egg size of Atlantic puffins Fratercula arctica is related to changes in forage fish stocks and climate conditions
Barret, R.T., Nilsen, E.B., Anker-Nilssen, T. 2012. Long-term decline in egg size of Atlantic puffins Fratercula arctica is related to changes in forage fish stocks and climate conditions. Marine Ecology Progress Series 457: 1-10.