Firefly Nights

Registration for 2024 firefly programs will be made available in the near future. If you would like to be notified when registration is open to the public be sure to sign up using our firefly interest form.

Firefly Nights 2024 Schedule:

  • Satuday April 27th - 8:00 PM
  • Saturday May 4th - 8:00 PM
  • Saturday May 18th - 8:30 PM
  • Saturday May 25th - 8:30 PM
  • Saturday June 1st - 8:45 PM
  • Saturday June 8th - 8:45 PM
  • Saturday June 15th - 8:45 PM
  • Saturday June 22nd - 8:45 PM
  • Saturday June 29th - 8:45 PM

We know 1980's retro has been in swing for a while now, but what about a real throwback, seeing fireflies at night? In the past, if you lived near any wet area in the eastern United States you'd generally see fireflies in the spring or summer. Now, you’re very lucky if you still do. Compared to other insects, very little is known about fireflies. Identifying individual species can be next to impossible without a magnifying glass. Two identical looking fireflies may have entirely different flash patterns or preferred habitat. Mysterious and elusive, fireflies have faded over time in both their populations and in our minds.

The old-growth forest at Beidler, and the 30,000+ acres around it that are protected, have provided a refuge for this declining group of insects. For years, our staff (and some lucky night exploration participants!) have seen some impressive displays of fireflies from April-June. To date, though, no studies have ever been done at Beidler to survey them. We’re still learning what species call the swamp home and what conditions they most prefer. We’ve witnessed synchronizing fireflies, and others with different flash patterns – and even glowworms – over the years. We’re excited now to begin sharing this experience with you!

Keep an eye on our website and social media pages over the next few months. As conditions become right, we might open a firefly program up that weekend! If you are interested in getting updates on our firefly programs, sign up here!

Firefly Nights at Beidler Forest FAQs:

  • No photography of any kind
  • No flashlights or other light sources. We will provide you with red flashlights to use during the event. Please keep cell phone use to a minimum.
  • Cover or turn off smart watches and other devices that produce artificial light. We will provide red cellophane to wrap visitor’s cell phones during the event.
  • All participants must stay on the boardwalk.
  • Alcohol is strictly prohibited.
  • No walk-ins. All participants must have a valid reservation.
  • No pets.
  • Only a portion of the boardwalk will open (this event is limited to areas where surveys found to be the best for fireflies)
  • The boardwalk is ADA accessible. Wheelchairs and battery-operated chairs are welcome.

Firefly Nights Best Practices:

  • Registrants should check their email 24 hours in advance of the event in case any changes have been made to the check-in process or if there is inclement weather we are watching.
  • Participants must stay on the boardwalk in designated areas. This rule will be strictly enforced. Fireflies are often seen in the parking area, but please do not wander outside of the parking area and be mindful of cars that are departing.
  • Speak softly to not disturb other guests.
  • For the safety of yourself and other, please keep movement from area to area to a minimum.
  • Stay with your children and do not allow them to wander.
  • Do not allow children to run on the boardwalk.
  • Do not leave any litter. Receptacles will be available for trash.
  • All cellphones should be set to silent during the program to not disturb other nocturnal wildlife.
  • Do not apply any insect repellent containing DEET (DEET has been shown to have a negative impact on fireflies). We suggest not wearing any insect repellent, but if you are sensitive to insect bites, please apply a non-DEET insect repellent before arriving to the center and/or wear pants and long sleeves.
  • No catching, trapping or disturbing fireflies.

What to bring:

  • Please dress for the weather. Pop-up rain showers and thunderstorms are common at night during the spring and summer (and do not seem to bother the fireflies at all).
  • We currently do not sell snacks or drinks in the visitor center. Small coolers and baskets for snacks and drinks are welcome, but alcohol is strictly prohibited. Please make sure to dispose of trash in proper receptacles or take trash home with you.
  • Small, easy to move chairs are welcome. Please set up your chair to one side of the boardwalk to allow visitors to move freely along the boardwalk. It will be dark and we don’t want anyone to trip. Please move your chair for those using or operating a wheelchair, battery-operated chair, or stroller.
  • Please return any materials to Beidler staff or volunteers that is given to you for the program.
  • Red-light flashlights will be provided. You are welcome to bring your own flashlight, but they MUST be red lights. Red cellophane will also be provided, but participants are welcome to bring their own as well. No other color lights will be allowed.

Refunds/Cancellations:

  • Beidler Forest will issue a full refund if the program is cancelled. Beidler Forest reserves the right to cancel this event due to inclement weather or for other reasons not specified.
  • For a full refund, registrants must notify beidler@audubon.org at least seven days before the event date. Please email beidler@audubon.org if you have any questions or concerns.

Fireflies are extremely sensitive to light. They have great vision and become active when the ambient light reaches a certain low point. However, if there are too many places nearby with lights on, then their instinct to illuminate never triggers, and they won’t signal or find mates. Habitat loss is also a big factor affecting fireflies, as they like moist, undisturbed soils and leaf litter, so monoculture grass lawns having nothing for them. Pesticides, which rarely limit their impact on just the intended target, also has a negative impact, and a study has shown that even bug sprays with DEET interrupts the chemical reactions that a firefly uses to choose when it illuminates itself and not. Temperature and precipitation have also been shown to be a huge deciding factor for firefly activity, with reduced populations during seasons that are drier or wetter than average, so a changing climate will also impact their activity. Basically, kids nowadays aren’t seeing them – not because kids never go outside anymore, but because fireflies are being attacked from all sides.

A flat segmented bug crawls across mud and moss of a log
A "glowworm," a firefly larvae. Their glow is much softer than the adults and they tend to be on the ground. This one was on a log surrounded by water off the boardwalk. It's also possible that this is a larviform female, as some firefly species have wingless females. Photo: Richard Covey

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