Are we birds under the observation of scientists?

Had a great conversation with a SAS expert one day and he shared something interesting with me regarding telecommunication cell sites. Organizations today have the ability to locate the position of individuals just by the determining the triangulation of their mobile devices. With the telco cell sites tracking their exact location, organizations such as governments are now able to use it to track human traffic on the road, therefore using this input to control the flow of traffic. "Hmmm, this is interesting...what if we could use this method to track human migration; like birds". Now that would be awesome.