A few months ago I hit a bird about halfway into my commute to work. I assumed I hit it because I saw it fly down in front of my car as I was driving "spiritedly" on a back road at 6:30am.
I get to work about 30 mins/25 miles later, with speeds of 80+ on the highway and I hear a noise from the front of my car after I parked. Somehow it squeezed through the grill on my E90 and was fluttering around behind the grill in front of the radiator. I couldn't believe it was alive. I opened the hood, popped one of the kidney grills out, and it flew away.