Stable-isotopes (δ2H, δ13C) within feathers from harvested American black ducks (2017-2020)

Stable isotope data from American Black Duck feathers (n = 665) and
associated harvest data. The first primary feather (P1) was collected from
wings submitted to the Species Composition Survey in Canada and Parts
Collection Survey in the United States. From available feathers, we
selected individuals for stable-isotope analysis stratified by black duck
conservation region, sex, age, and date of harvest, where possible. These
data are those that were selected for stable-hydrogen isotope analysis.
See Kusack et al. (in press) - 'Origins of harvested American black
ducks: stable isotopes support the flyover hypothesis' for additional
information on our use of this data.