… avian embryos are treated with sex steroids or steroid antagonists suggest that sexual
differentiation of reproductive behavior … for such behavior) is controlled by steroids produced by …

… ?" - but they also indicate that the reproductive portions of the endocrine system are … sex
hormones play an important role in brain development. Until recently, the role of sex hormones …

… conducted that examined the ability of different sex steroids to stimulate crowing, strutting,
and … Adkins, EK Sex steroids and the differentiation of avian reproductive behavior. American …

… steroids, changes in environmental conditions, or in the physiological status of the individuals.
In … , intrinsic sex differences in the expression pattern of sex steroid receptors and steroid-…

… sexual and aggressive behavior with female partners. TP restored bow-cooing, hop-charging,
wing-flipping, and copulation to levels of intact males. EB stimulated a great deal of wing-…

… regulate the expression of reproductive behaviors activated by androgens, estrogens and
progestagens in males and females. These effects were detected in one avian and one rodent …

… and behavior of hormones in avian eggs. The main source of hormones found in avian eggs
… that contain specialized cells creating different hormones during their development. The …

… that sex chromosomes play certain direct roles in the sex-specific … sex steroids and sex
chromosomes in the determination of brain functions related to sexual behavior and reproductive …

… Although our focus here is on the sex steroid hormones, studies on nonsteroidal hormones
and the adrenal glucocorticoids are contributing to our understanding of hormone action on …

… Sex steroids influence a diversity of neural and behavioral … in birds, including some that have
little to do with reproduction … that the avian brain comprises a network of unique sex steroid …