Many thanks. And here is the more recent paper about the heritability of the endocrine plasticity: besjournals.onlinelibrary.wiley.com/doi/10.1111/...
Hormonal plasticity to food restriction is heritable in the house sparrow, Passer domesticusIt is currently unknown if endocrine plasticity to environmental challenges is heritable. We compared parental and F1 generations to partition heritability into genetic and environmental sources of v....besjournals.onlinelibrary.wiley.com