If you live in Venezuela, you can make extra money by hunting North American bullfrogs (Rana catesbeiana). According to this article from The Boston Globe, you can earn 1000 bolivars (about 50 cents) per adult female, less money for males and tadpoles. The froggy roundup is part of an effort to reduce populations of the invasive bullfrogs, which have been observed to decimate biodiversity in the ponds where they take up residence. Read the detailed, well-written article for more about the history of this species in Venezuela (bonus points to the Globe for using the scientific name). For information about North American bullfrogs in Europe, see this site.
Thanks to members of the ALIENS-L listserver for posting a link to the article and the Euro-site.