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River Otter Photographed on Bronx River in First Recorded Sighting in About 100 Years

Experts say the image points to improving freshwater habitat in the Bronx River and that ongoing monitoring is needed to confirm a resident population.

Overview

  • A motion‑activated camera deployed by scientist R.J. Hawkins captured a North American river otter on June 23, 2026, and the Wildlife Conservation Society’s Bronx Zoo has since confirmed the photograph.
  • The WCS and Bronx Zoo announced the finding publicly in mid‑August, framing the sighting as a visible result of long‑running cleanup and habitat work along the river.
  • Researchers caution that a single camera‑trap image does not prove the otter is a permanent or breeding resident and say continued camera monitoring and field surveys are required to determine if it returns.
  • The photograph joins long‑term signs of recovery documented by the WCS Education Department’s camera program, which has recorded beavers, muskrats, turtles, birds and coyotes since the program began about two years ago.
  • Conservation groups note the sighting matters because otters need clean water and ample fish, but they also warn otters bioaccumulate contaminants and the Bronx River remains not safe for swimming or drinking, so restoration and testing must continue.