Brazos Bend State Park
Volunteer Organization   
Gator Hatch

Green Treefrog

Hyla cinerea

Green Treefrog

Description - Body - 1 1/4 - 2 1/4 inches (3.2 - 5.7 cm) long. Green Treefrogs, like their name, are usually a brilliant bright green. Their color can change from a yellowish-green color when they are active and singing to a dull green or gray when it is cold outside. A bright yellow or white stripe can usually be seen on the side of the frog extending from the corner of the mouth to near the hind leg. Sometimes they will have small gold spots on their back. Males have a greenish yellow throat and are smaller than females. The female has a white throat.

Voice - Male frogs make a loud "GOINK" sound. They will repeat this sound up to 75 times per minute. When a group gets together in a chorus (sometimes 1000’s of frogs at one time ) it can be deafening. They can be heard calling at Brazos Bend State Park most evenings from March - October.

Habitat - Green Treefrogs can be found almost anywhere in the park. They commonly live in swamps, marshes, banks of lakes and streams, floating vegetation and wet grassy areas. They are often found stuck to windows at night searching for bugs that are attracted to light.

Breeding - Breeding occurs from March - October, but is more common after heavy rains. Males will call to attract females to breeding ponds. Females will lay a small packet of eggs attached to floating vegetation. Eggs will hatch in several days to a couple of weeks depending on temperate.

Range in Texas Green Treefrogs can be found in most of the Eastern half of the state.

Notes - Green Treefrogs are the most common frogs in the park. Choruses can be heard on most summer evenings. Populations of Green Tree frogs are currently being monitored in the park by conducting call surveys and a tagging and recapture program started in 1993.

Updated: Aug 12, 2011