ND pigeon seems all better, now what?

well, this pidge seems to have made a recovery. she's flying up and roosting on top of doors, eating and drinking on her own, and the weathers warming up now, so soon i will let her go back to her flock. she likes to sleep by the window

this pidgeon is wild. there aren't any feral flocks here in grand forks. the pidgeon population has been greatly reduced in the last 5 years, due to death spikes downtown and all, but they have removed these in the last year or two. i've never seen anyone feeding the pidgeons in any parks or areas around here.
this pigeon was downtown when i found her, and i don't know how territorial these birds are, so i'm loathe to take her to a favorite pigeon roosting area in town here (it's an underpass on the main drag here) i think that's a different flock.

my initial plan was to take her back where i found her, i thought she would surly recognize the area, as she was probly hatched there, and let her go as she flys well and is perching...plus aren't pigeons home bodies anyway? perpetually returning to their native roosting places?

but perhaps a soft release is called for. this will be tricky for me, as i will literally have to lure the downtown flock, (never have done this before) and then this town is small enough that somebody might get annoyed with my efforts once the flock wants to hang out in central square (they have a saterday market there, but it's a downtown cement amplitheater across the street where i found this bird) would it be harsh to just let her go where i found her? and should i wait untill it's even warmer out? it's not supose to fall below ) degrees again, but maybe 30 is better?