Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Behavior of Male and Female Zebra Finches Treated With an Estrogen Synthesis Inhibitor as Nestlings

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Behaviour

In order to test hypotheses about the organizational role of early estrogen in the sexual differentiation of behavior in zebra finches (Taeniopygia guttata), newly hatched birds were given one of three treatments: (1) daily injection with an aromatase inhibitor (fadrozole hydrochloride) for the first week; (2) the same treatment for the first two weeks; (3) daily injection of the vehicle for one or two weeks. As adults, birds were implanted with testosterone propionate and underwent a three-phase testing procedure designed to measure singing, dancing, copulation, and preferences for male vs female partners. Males were completely unaffected by fadrozole hydrochloride treatment; they sang, danced, and mounted at control levels, and like control males they preferred female partners. Females were similarly unaffected, with one important exception: those treated with fadrozole hydrochloride during the first week preferred to be spend time near females instead of males in choice tests, unlike control females. These results suggest that a model of zebra finch sexual differentiation in which estrogen organizes male-typical behavior is unlikely to be correct. At the same time, they provide evidence that a key dimorphic feature of mate choice, preference for opposite-sex birds (sexual orientation), may result from organizational hormone actions during the early post-hatching period in this pair-bonding species.

Affiliations: 1: (Department of Psychology, 218 Uris Hall, Cornell University, Ithaca, NY 14853-7601, USA


Full text loading...


Data & Media loading...

Article metrics loading...



Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    Behaviour — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation