Agile frog

About

The Agile frog is the most graceful of our brown frogs. Its body length is mostly 5–7 cm. The snout is pointed, and the hind legs are very long: when extending a leg forward along the body, the heel reaches far beyond the tip of the snout. The back is light brown, pinkish, or grayish, resembling last year's leaves, almost without spots. A dark 'mask' stretches from the eye through the tympanic membrane. The belly is white and spotless. It jumps significantly further than other frogs — up to two meters.

In Ukraine, this species lives only in the Transcarpathian region: in the lowland and foothills, in oak, hornbeam, and beech forests. The Agile frog does not ascend high into the mountains. It spends most of the year on land, in the forest litter, and comes to water only for breeding.

It breeds very early — from February to April, as soon as the ice melts. The female lays eggs in a spherical mass, which she attaches to a branch or stem underwater in a forest puddle, ditch, or pond.

It is most often confused with the Common frog, which is widespread throughout the Carpathians. The Common frog is stockier, with a blunt snout and shorter legs, and its belly has a marbled pattern.

The species is listed in the Red Data Book of Ukraine with a status of 'vulnerable'. The main threats are the drainage of forest water bodies and the logging of lowland forests. Frogs and their eggs cannot be caught or transported. The distribution on the website is shown only at the level of massifs.

Where in the Carpathians

Orange — where naturalists recorded the species (GBIF, CC0/CC BY). It occurs only locally, so we draw no approximate range; a blank area does not mean it is absent. For rare and vulnerable species the map is deliberately coarse (hexagons of ~250 km² or more) so that it never points to dens, nests or growing sites.

Countries

Ukraine · Romania · Hungary · Austria · Slovakia · Czechia · Poland · Serbia

Mountain ranges

Vihorlat-Gutin Volcanic Ridge, Pokuttia-Bukovina Carpathians, Polonynian Ridge, Maramureș Mountains, Skole Beskids, Bieszczady, Gorgany. In other countries: 🇷🇴 Almăj and Locva Mountains, 🇷🇴 Codru-Moma and Zarand, 🇭🇺 Mátra, 🇷🇴 Călimani and Bârgău Mountains, 🇷🇴 Harghita and Gurghiu Mountains, 🇭🇺 Bükk, 🇷🇴 Buzău Mountains

Altitude belts

Foothills (below 600 m)

When to see it

From naturalists’ observations in the Carpathians (iNaturalist, research grade): the darker the cell, the more often the species is seen that month.

Protection and rules

Listed in the Red Data Book of Ukraine (vulnerable). Catching frogs and collecting eggs is prohibited.

Red Data Book of Ukraine

FAQ