The male stranger informed me I had encountered a Song Sparrow and congratulated me on my "find" but I wasn't convinced I had found a Song Sparrow! I've seen Song Sparrows in the park before and upon closer examination of my other pictures (seen in the following series)...
... I suspected of my "find" was not a Song Sparrow and was tempted to reach out to Amanda Remsberg as I had done last Wednesday when I had a bird ID question, but I felt shy to ask her an ID question again so I emailed my question to Robert DeCandido PhD, a man who leads bird walks in the park.
I received an answer almost immediately letting me know that my "find" was a female Red-Winged Blackbird, which made sense given that I had seen a male Red-Winged Blackbird in that vicinity.
Up until last night I had never seen a female Red-Winged Blackbird but I've now learned from an e-bird web-page, "females are streaked brown and often confused with sparrows. Look for long, sharply pointed bill."
A couple of years ago, when I first encountered a male Red-Winged Blackbird in Central Park, I read "Red-winged Blackbirds display marked sexual dimorphism."
This fact ("marked") seems like an understatement as evidenced in the next images of a female and male Red-Winged Blackbird, wouldn't you agree, dear reader?