The Common Toad is the biggest Bulgarian frog. It lives in groves, bushlands, parks and gardens,generally in fairly wet sites with dense vegetation. Spawning take place in lakes, ponds, ditches, large puddles and streams with relatively clear water, quite variable in area and depth.
Common Toad is distributed in the country (up to 1800 m above sea-level).
   Its characteristic feature is that pupil of the eye is horizontal. Tympanic membrane is not visible. No male resonator. Dorsal skin is usually with rounded tubercles, sometimes with sharp top. They make the back to be rough. Each eye above, there is a elongate glandular wart, like to bean. Therefore, that frog is called "Bean frog". Dorsal surface white-grayish, gray, brown or olive-brown with more or less developed darker spots. Background coloration changes during the breeding season, becoming uniform. Belly light-gray or yellowish-gray with dark spots.
Body length reaches 12-15 cm. Common toad is active mainly in twilight.
   Reproduction occurs usually late April - May.
   Common toad forages exclusively on land, mainly on crawling invertebrates. As in other species of toads, consumption of ants is very typical.
   If faced by a potential predator, the adult toad lifts its body on straight legs and butts its head toward the danger.
   Common Toad is considered as useful animal.