it's a wren
too small to be a thrasher or mockingbird, but may be too big to be a wren. Hard to tell from the photos. We just had a nest full of baby wrens hatch and fledge about 1-2 months ago on our back porch.
brown/rufus colored like a wren, tail sticks up like a wren, and the body shape is like a wren. Also, the way the baby in "perched" is more of a wren thing, leaning forward or standing on the side of something, where thrashers and mockingbirds stand up on top of stuff.
wren
house

Carolina
thrasher
mockingbird
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Steve
'08 Boxster RS60 Spyder #0099/1960
- never named a car before, but this is Charlotte.
'88 targa

SOLD 2004 - gone but not forgotten