Just me or the fact that they managed to record the brain activity of birds in flight seems more interesting than the fact that birds sleep in flight? I mean,

Just me or the fact that they managed to record the brain activity of birds in flight seems more interesting than the fact that birds sleep in flight? I mean, the reason I clicked the link is because I wanted to learn HOW they recorded the brain activity. I just never imagined EEG sensor + logger can be miniaturized to such a degree.