Unknown Duck - San Diego. Help!

On Thursday March 21st I was birding the Northern Preserve in San Diego when I ran across this duck in the salt marsh - at the time I was being inundated with life birds including Long Billed Curlew so after a cursory look I assumed this was some domestic hybrid, however now that I review the pictures I am less certain.

If you have any idea what this bird is please let me know!

Here is a tighter crop -

Cinnamon Teal

Possible Cinnamon Teal observed in the flooded fields on the east side of CR 21 5 miles south of Business 371 south of Brainerd, MN.   (click image for full size)

The only comment I have received about this bird suggests the possibility of a hybrid BW X Cin Teal.  I am adding a picture that hasn't been edited aside from raw conversion and cropping.