Clay-colored Sparrow? ID help...

[Scott Manly]

Early this I was at my breakfast table in front of our feeders when sparrow showed up that looked new.  I grabbed my camera (which was on the table already) and took about 6 or 7 very low-light shots before it flew off.  Only two or three are fit for ID help.
 
At any rate, from Sibley's, I am still not sure if I saw a Clay-colored or immature Chipping Sparrow.  I would appreciate some help.
 
http://www.grovestreet.com/jsp/picview.jsp?album=71650
 
Thanks,
Scott Manly
 
P.S.  Thanks for all those that wrote back to confirm the Lincoln's Sparrow at this same feeder on Sunday.  and for those who missed it, the baby bird I posted awhile back was indeed a grackle.  I watched the mother feed it.
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