Tracking Flight of a Bee or a Wasp
You'll find this stunningly apposite

2 orthogonal coils of about 100 turns (using 10 um diameter wire !!!) of 2mm diameter or less are mounted ob a blow fly and tracked in 3D space. They use a halter wity wired connection without impeding the blowfly's flight significantly. I have ideas (probably impractical) for a fully wireless version. 



Photos from paper here:

Using miniature sensor coils for simultaneous measurement of
orientation and position of small, fast-moving animals Neurosci. Meth. 83, 125-131.

This is a related follow-up paper.
Not content wity the stunning initial result they mounted a second coil triplet on the blowfly's head so they could tell where it was looking while in flight. 

BLOWFLY FLIGHT AND OPTIC FLOW
II. HEAD MOVEMENTS DURING FLIGHT

Usefully related.  

AC magnetic field detection system applied to motion tracking