s/behavior/behaviour

docs/api.rst

@@ -249,7 +249,7 @@ API Changes
       requests.get("http://example.org", proxies=proxies)
 
 
-Behavioral Changes
+Behavioural Changes
 ~~~~~~~~~~~~~~~~~~
 
 * Keys in the ``headers`` dictionary are now native strings on all Python

docs/community/support.rst

@@ -15,7 +15,7 @@ If your question is less than 140 characters, feel free to send a tweet to
 File an Issue
 -------------
 
-If you notice some unexpected behavior in Requests, or want to see support
+If you notice some unexpected behaviour in Requests, or want to see support
 for a new feature,
 `file an issue on GitHub <https://github.com/kennethreitz/requests/issues>`_.
 

docs/user/advanced.rst

@@ -194,7 +194,7 @@ Body Content Workflow
 ---------------------
 
 By default, when you make a request, the body of the response is downloaded
-immediately. You can override this behavior and defer downloading the response
+immediately. You can override this behaviour and defer downloading the response
 body until you access the :class:`Response.content <requests.Response.content>`
 attribute with the ``stream`` parameter::