TY - GEN AU - Møller,A P TI - Male ornament size as a reliable cue to enhanced offspring viability in the barn swallow SN - 0027-8424 PY - 1994///0822 KW - Animals KW - Animals, Newborn KW - Birds KW - anatomy & histology KW - Female KW - Genotype KW - Longevity KW - Male KW - Parents KW - Phenotype KW - Reproduction KW - physiology KW - Sex Characteristics N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1073/pnas.91.15.6929 ER -