Species:

Rhinella margaritifera

South American Common Toad

Notes on this species:
The genus Rhinella was split from Bufo by Frost et al in 2006. Most references still use the long-established name Bufo margaritifer for this species.
April 18, 2001
Pipeline Road, near Gamboa, Panama province, Panama
South American Common Toad (Rhinella margaritifera)
South American Common Toad (Rhinella margaritifera)
These toads have incredible camouflage against the leaf litter throughout which they hop. They make fine photography models, because they trust their camouflage enough to sit completely still for a long time. Both of these are youngsters, only an inch or so long.

I originally identified these toads as Bufo haematiticus. Thanks to Mark Tway of the Institute for Tropical Ecology and Conservation for identifying this species correctly.