
Keywords: E، روز جنینی; BSTM, bed nucleus of the stria terminalis; D, post-hatch day; E, embryonic day; EB, 17β-estradiol benzoate; FA, fractional area; POM, medial preoptic nucleus; LS, lateral septal region; VT, vasotocin; VT-ir, vasotocin-immunoreactiveBird; Brain; Sex dimorp