ZoologybioRxiv
Condition dependent strategies of egg size variation in the Common Eider Somateria mollissima
T. K. Christensen, T. J. S. Balsby
The paper examines intraclutch egg-size variation in Common Eiders, finding that egg size changes with clutch size and female body condition to optimize reproductive success.
DOI 10.1371/journal.pone.0226532