Plot Twist: Researching allowed! And: I don’t know the answer to this one.
These four baby birds have been growing up very fast in a nest their mama made on our front porch. My ability to identify birds ends at the duck-cardinal-swan level. I don’t know what kind of birds these are. I thought someone here might have a guess based upon the appearance of the nestlings and/or the nest itself. (We never saw the eggs due to the height of the nest and not wanting to disturb mama so I can’t describe those.) The babies look exactly like mama.
Since I don’t know the answer, I am going to play too and guess that these are Carolina wrens. I Googled and found this is our state bird here in SC. So I know at least we have this kind of bird somewhere in this state and it’s not impossible that some might be on our porch. More daring and/or more knowledgeable guesses are also welcome. Anyone guessing duck, cardinal or swan gets partial credit, out of sympathy.