Birds, Analysis, Life Sciences, Evolutionary biology, Animal behavior, Animal populations, Life cycles, Genotype & phenotype, Zoology, Behavioural Sciences, Animal reproduction, Yolk hormones, Parent-offspring conflict, Inheritance, Parental care, Parenting
Environment, Life Sciences, Evolutionary biology, Animal behavior, phenotypic plasticity, Genotype & phenotype, Zoology, Behavioural Sciences, Environmental effects, maternal effects, Parent-offspring conflict, Parenting, Family life