What is this plastic piece rattling?

[aspec818]

I’m trying to pinpoint a rattle coming from the driver front area, and noticed a piece of black plastic that is loose and rattling. It’s located behind the corner of the driver side hood. What does this piece do? I jiggled the passenger side and it’s also slightly loose but not as free as drivers.

 

[N54TT]

It just hides/covers the hinge for the hood. Mines a little loose too but it doesn’t rattle or anything(at least noticeably) when I’m driving.