It's Another Boy for Kevin Costner!
02/13/2009 AT 09:50 AM EST
Hayes Logan Costner weighed 8 lbs., 15 oz., upon arrival.
Costner recently told the Associated Press that the name Hayes was "a cowboy character" in a Western movie he soon plans to make, and that it is "a great Western name."
Costner, 54, and Christine, 34, announced her pregnancy in November. They were married in 2004.
The couple's first son, Cayden Wyatt, was born in May 2007. Costner also has four children from previous relationships.
Welcomes baby Hayes! Leave your congrats for Kevin here
2004: See photos from Kevin & Christine's Rocky Mountain wedding
Read more about Hollywood's baby boom!