Originally Posted by penolta
Sorry to be contrarian, but the first three are a sparrow - probably a Savannah - where were you when you took the pictures? And number 4 is a female Redwing Blackbird. Can't tell offhand what 5 and 6 are.
It's hard to go against penolta. . . but independently, after looking them up, I'd also say Savannah Sparrow for the first, with the yellowish eyebrow, and the bill shape is a dead giveaway for the female RWBB in #4.