Whippoorwill

There is a song that I enjoy titled “I’m So Lonesome I Could Cry” by Hank Williams, which contains the lyrics.

Hear that lonesome whippoorwill
He sounds too blue to fly
The midnight train is whining low
I'm so lonesome, I could cry

I never fully understood these lyrics until I went camping with a friend in the State College area. I heard a whippoorwill cry for the first time and my brain exploded.