News Release

August 3, 2012

Contact: Sondra Katzen
Public Relations

Note: Images of the tawny frogmouth chicks may be downloaded at

Tawny Frogmouth Chicks Hatch at Brookfield Zoo

     Brookfield, Ill.—The Chicago Zoological Society is happy to announce the hatchings of two tawny frogmouth chicks on July 9 and 11.

For reasons unknown, the parents—Eunice, who is on loan from Riverbanks Zoo in South Carolina, and Gullet, who is from Sea World Orlando—abandoned the nest about halfway during the incubation period. To give the unborn chicks a chance at life, staff pulled the eggs and placed them in an incubator. Once the eggs hatched, they received round-the-clock care. Now at 3 weeks old, they have grown, are eating well, and appear to have a bright future ahead of them.

The pairing of the adults was based on a recommendation from the Association of Zoos and Aquariums’ (AZA) Tawny Frogmouth Species Survival Plan (SSP). An SSP is a cooperative population management and conservation program for select species in accredited AZA zoos and aquariums. Each SSP manages the breeding of a species to maintain a healthy and self-sustaining population that is both genetically diverse and demographically stable.

Until the chicks are a little older, they will remain off exhibit while being cared for by Animal Programs staff. Guests are able to see the adult pair in the zoo’s Feathers and Scales building.
The species is monogamous. Breeding takes place from August to December (year-round in zoos). Parents share incubation duties—the male during the day, the female at night. The incubation period is between 28 to 32 days, and chicks hatch covered in white down that turns gray in a few weeks. They fledge at approximately 35 days.

Tawny frogmouths have mottled gray, black, white, and silver plumage, with a darker tail and paler undersides. They have a heart-shaped bill and a huge, wide mouth that resembles a frog’s gaping mouth when open—hence their name. Their eyes are very large and perfectly round; the gold iris is encircled with a ring of orange-brown and the pupil is coal black. Males are about 20 inches tall; females are slightly smaller.

Unlike their closest relatives, which include nightjars, nighthawks, and whippoorwills, tawny frogmouths are weak flyers. They remain very still on a low perch in the dark until their prey comes close,  
then they pounce on their meal. At times, the birds adopt a “wait-and-see” technique by perching with their beak open, waiting for insects to brush into their stiff, whiskerlike feathers, which surround their wide-open mouth.

The Chicago Zoological Society, which manages Brookfield Zoo, inspires conservation leadership by connecting people with wildlife and nature. The Chicago Zoological Society is a private nonprofit organization that operates Brookfield Zoo on land owned by the Forest Preserve District of Cook County. Open every day of the year, the zoo is located off First Avenue between the Stevenson (I-55) and Eisenhower (I-290) expressways and is also accessible via the Tri-State Tollway (I-294), Metra commuter line, CTA, and PACE bus service. For further information, visit

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