[EBB Sightings] Late(?) Grosbeak

Hi folks,

My feeder gets regular visits from Black-headed grosbeaks in the  
summer (Hills near Wildcat Canyon R.P., Contra Costa County)  Its been  
at least a month since I've seen one- then this morning had a brief  
visit from this guy/gal (photos below).  I'm guessing its another  
Black headed- I'm also guessing it is a young bird, but figured since  
we are in migration it would be worth getting some expert opinions.   
Unfortunately never saw the underwing.

http://www.flickr.com/photos/12341100 at N06/sets/72157607396231263/

Thanks, and good birding!

Alan Krakauer