A big set of congratulations go out to Holly Hennin who successfully defended her PhD entitled “Energetic physiology mediates reproductive decisions in a long- lived, capital-income breeding seaduck“. Holly used datasets begun back in 2003 by her team members Dr. Joël Bêty, Dr. Grant Gilchrist and her supervisor Oliver to successfully examine energetic physiology as a correlative and causal driver of variation in breeding phenology decisions in Arctic-breeding common eiders. Well done Holly! We are all very proud of you.