Stable carbon and nitrogen isotope data for Siberian barn swallow subspecies collected during the breeding season

This dataset includes stable carbon and nitrogen isotope values for the inner tail retrices of three subspecies of barn swallow (Hirundo rustica rustica, H. r....本数据集包含家燕（Hirundo rustica）三个亚种（如Hirundo rustica rustica、H. r.……）的内侧尾羽的稳定碳、氮同位素值。