Not a bird, not a plane...

It's a deorbiting Jules Verne Automated Transfer Vehicle!  Specifically, it's a Jules Verne ATV being de-orbited after a successful run to the International Space Station, and burning up in the atmosphere.

This film doesn't start off all that spectacular, but keep watching: it gets better.  Also, don't be sad or distressed; this is actually a space project that worked, and worked well.  It's a sign of hope, actually.