Facts have been confirmed! The American kestrel (or Common kestrel), pictured atop this entry as she clutches her prey (which happens to be an unlucky mouse), while she alights upon a railing that surrounds my rooftop garden (in NYC), is a female.
If you've been following my entries on Blogger, dear reader, than you might recall that I announced this bird's first time visit in an entry I published this past Thursday, where I include a photograph that is very similar to the one posted above.
In the aforementioned post I also included the fact of how, initially, when I first saw this bird, I had mistakenly ID-ed the fauna's type. I followed up on Thursday's entry in a post here on Blogger, which I published yesterday.
This follow up post includes a number of images as well as information on how I was able to confirm this bird's identification in terms of the classification. If you'd like to refer to Friday's follow-up post, please click here.
At the time of my composing yesterdaty's entry, I had reason to believe my avian visitor was a female, but on closer examination of the pictures I had taken of the bird, I was not sure if my conclusion was correct.
I had made this determination re the bird's gender because I had learned that the male American kestrel (or Common kestrel), have blue markings; and I wondered if the blue markings seen on my visiting kestrel's head (in the following image),

where the creature is alighting on the branches of my kiwi vines, meant that I was wrong in thinking the bird to be a female.
Therefore, before I posted any "It's a GIRL!," rhetoric regarding this bird, I reached out to folks via a comment on my Facebook Page for The Last Leaf Gardener stating: "Me again, I'm going through some more photos that I took of this awesome bird and at first I had thought the gender was female. Now I've noticed the bird blue on the head! Do you still think it's a female, Amanda Remsberg? What say you, Leslie Monday and Joan Morris?"