New Guinean passerines have globally small clutch-sizes

Ben Freeman and I analyzed clutch-sizes of New Guinean passerines and their South-East Asian congeners. We found that passerines in New Guinea have experienced multiple decreases in clutch size, such that many New Guinean passerines lay single-egg clutches. Our findings were recently published in the Emu and a full pdf of the study can be found on the publications page.