• Pa-Hay-okee Overlook

    Everglades

    National Park Florida

North Nest Key Sound Gallery

North Nest Key facilities

North Nest Key facilities.

NPS photo

Below, listen to a Gulf toadfish recorded at North Nest Key, a small key located in the northeastern part of Florida Bay. Keep in mind that a backcountry permit is required to camp at all backcountry campsites in the park, including North Nest Key.

 
Gulf toadfish

Gulf toadfish.

Photo courtesy Texas Parks and Wildlife Department

Toadfish are one of only a few fish species that make sounds loud enough for people to hear. Try a round of Name That Tune: Everglades Edition to see if you can distinguish the sounds of a Gulf toadfish from those of an Eastern screech owl.

 

 
Spectrogram of Gulf toadfish
Spectrogram of Gulf toadfish. Also called sonogram, spectral waterfall, voiceprint, or voicegram, a spectrogram is a visual representation of the spectrum of frequencies in a sound that can be used to analyze the various calls of animals. The horizontal axis represents time and the vertical axis represents frequency. The amplitude of a particular frequency at a particular time is represented by the intensity of color at each point in the image.
Image courtesy NPS Natural Sounds Program
 
Acoustic monitoring sites in Everglades National Park.
Acoustic monitoring sites in Everglades National Park.

Did You Know?

Full Moon

National Parks are some of the few places in this country where people can experience a night sky in all its magnificence, without the interference of artificial lights. In fact, a night sky monitoring program is being implemented in the National Park System to inventory light pollution.