Newcomer

In mid April, I was expecting a summer bird to make a pit stop.  Close the noon time, I saw a bunch of regular birds flying in.  Amongst them, I saw someone unusual, first lying low around the lawn and then flying onto the bush near the fence.  Who is this?

"Hi, I am on the way to a wetland where 

I can wait for my mate to arrive later."

This is a Common Yellow Throat male, who happened to show up in my backyard for the first time!

"Many birds were fussing around here, so I wanted to find out why."

"If I can find some bugs, I may stop over again

 in the fall on the way back to the south."