This is what you must have before you get a job

You may not know it now, but you know the answer better than anyone else.

Four soldiers and captain, Spoiling to fight, Mustered together, In formation tight

I have wings and hunt with keen sight, or I am flown on a windy delight. One of me is living, fierce and free, the other is a toy that dances with glee.

Floating flames are my fame; forests and woodland areas are my haunts. I am not ablaze, despite what my name suggests, as I soar through the air around you. What creature is this that hides the darkness away and keeps things lit during the nocturnal hours?