Bufo alvarius. When these toads are in full-breeding swing I have seen 10 or more pairs in amplexus and several females carrying bulky males on their backs while looking for water. Compared to other serenading amphibians, Sonoran Desert toads have quiet voices for their size, probably limited by their small vocal sacs.
One of the most unique inhabitants of the Sonoran Desert is the native toad, Bufo alvarius. Although the genus Bufo includes more than two hundred species of toads, B. alvarius is the only species that exists exclusively within the Sonoran Desert. Unlike most toads, B. alvarius is semi-aquatic and must remain in the vicinity of dependable water in order to survive.
Aug 12, · Wild Sonoran Desert Toads gallivanting about in the Arizona desert to the glorious sounds of SaReGaMa. Many close ups and action shots in and out of the water. (Formerly known as Colorado River.
Bufo alvarius. The Sonoran Desert toad is the largest of the western toads and is extremely fast when it decides to make a getaway - it doesn't hop, it gallops! Adults may attain a snout-vent length of up to seven inches. The skin is generally smooth, especially for a toad, but with small scattered warts.