Call them the tide-herons.
After hearing from a local resident who mentioned he had seen Yellow-crowned Night-Herons in his own little patch in an out-of-the-way park on the East River, I began thinking Clason Point Park or Soundview Park might be the lone or one of the few Bronx spots to potentially see the species. I know very little of this species beyond identification, so my guesses as to when to see it centered on "anything is possible during migration" or the possibility that they nested locally.
In scanning information about their behavior, I found the following clue on Cornell University Lab of Ornithology Allaboutbirds.org to help me narrow it down:
"Yellow-crowned night-herons forage both during the day and the night - in coastal areas the tide can trump the time of day: most foraging occurs from 3 hours before high tide to 3 hours after."
|High tide near the mouth of the Bronx River|
|Low tide near the mouth of the Bronx River|
Limited to pretty much weekends and public transit, and with a fellow bird watcher who has unique requirements, following the tides is bit a of a challenge. Nonetheless, the chance at seeing this species would be worth the multiple buses it would take to get there.