The answer is no, because the Prophet S.A.W told us to wipe over it from the hairline to the back of head and then back up to wipe inside and behind the ears. This is the sunnah, so if you have privacy from non-maharam men, this is how you should make your wudu. If you are not able to find a private place to make wudu and are in danger of the prayer time running out, the scholars are in agreement that you may wet what strands and parts of your hair that your fingers may reach underneath your hijab and still have a valid wudu, since you cannot remove your hijab in the presence of non-maharams. But the sunnah is to wet the hair from the hairline to the back of the head and then back up to wipe water within and around the ears.
(source:http://girlsguidetobeingmuslim.blogspot.com)