We found this on our front door the other day. My d said it was a leaf bug and it is also called by that name. It actually does look like a leaf even with the veins.

I found a cute blog article about them HERE. 

I cannot vouch for them singing as we have so many crickets, cicadas, flies, and other insect  sounds that I wouldn't know what it sounds like.

Blessings.

To see my other homestead blog articles go HERE.