Mothers who produce multiple offspring within one reproductive attempt often allocate resources differentially; some maternally-derived substances are preferentially allocated to last-produced offspri
This dataset contains information from field-based studies published in the journal Ornithology from 1960-2024. Information collected includes annual cycle stages examined, regions of study, migratory
Total number of monitored nests and observations for each species and number of cases where parental provisioning was observed during the breeding season in 2010 at Forêt Montmorency (Québec, Canada).
We used a novel combination of a non-invasive doubly-labelled water technique, nest temperature data and field-based behaviour observations to test effects of temperature, rainfall, and group size on
Data used for GxE analyses, where each line represented a reproductive event within a nest box. Columns included year (YEAR), female identity (ID.F) and its age (AGE.F; SY=second-year, ASY=after seco
