Growling grass frog

Appearance

The growling grass frog is a very large, ground-dwelling tree frog up to 10 cm from snout to vent. It is a mottled bright green and bronze colour above, often with dark brown enameled bumps. It has a pale cream underside, with a faint cobbling pattern. A pale stripe runs from the side of the head down the flanks as a skin fold. The thighs are blue-green in colour.

There are a series of shallow bumps over its back. This frog closely resembles the green and golden bell frog , but is distinguished by the shallow bumps on its back, a shorter call, and a slightly different head and snout shape. The tympanum is visible in these frogs.

The tadpoles are also very large . The tadpoles often have a coppery pigment along their sides and an iridescent green sheen along their backbones.

Behavior

This species is associated with large swamps, permanent dam impoundments, ponds, and lakes in woodland, shrubland, open and coastal areas.

This frog is an agile climber, but is most often found amongst dense reeds or along swampy grasslands. It hunts and basks in the sun during the day. Growling grass frogs reportedly hunt other frogs by zoning into the sound of their calls.

The call is a three part moaning "craw-ork ar-ar", rising and then falling in tone . The males develop black, rough nuptial pads on their thumbs during the breeding season, which occurs during spring through to late summer. The eggs are distributed in a loose pile. These frogs stay in tadpole stage for at least one year.

This frog is believed to be in decline across much of its range. In some regions, it has disappeared altogether, but in others it remains locally abundant .

Habitat

This species is associated with large swamps, permanent dam impoundments, ponds, and lakes in woodland, shrubland, open and coastal areas.

This frog is an agile climber, but is most often found amongst dense reeds or along swampy grasslands. It hunts and basks in the sun during the day. Growling grass frogs reportedly hunt other frogs by zoning into the sound of their calls.

The call is a three part moaning "craw-ork ar-ar", rising and then falling in tone . The males develop black, rough nuptial pads on their thumbs during the breeding season, which occurs during spring through to late summer. The eggs are distributed in a loose pile. These frogs stay in tadpole stage for at least one year.

This frog is believed to be in decline across much of its range. In some regions, it has disappeared altogether, but in others it remains locally abundant .