> I know hognoses are picky eaters to say the least,
You are thinking of the North American hognosed (Heterodon species), which are in the Dipsadidae snake family while the Madagascar hognosed (Leioheterodon species) are totally unrelated, being in the Pseudoxyrhophiinae snake family. Its a case of unfortunate naming. North American hognosed are much more closely related to false water cobras (Hydrodynastes) while the Madagascar hognosed are much more closely related to sand snakes (Psammophis) and other African 'colubrids'. Indeed, they are far more closely related to cobras than they are to North American hognosed.
So, the dietary preferences are going to be radically different. The North American hognosed are the ones that can be problematic to get to eay anything but the local toad (and the eastern hognosed are much more of a pain than the western hognosed). Madagascar hognosed will readily take mice, if they bother to eat at all (imports can sometimes be hard to get eating, others will eat like pigs).
Leioheterodon are really cool snakes with some very unusual behaviours.
Cheers
Bryan
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Dr. Bryan Grieg Fry
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Australian Venom Research Unit,
University of Melbourne
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Population and Evolutionary Genetics Unit,
Museum Victoria
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http://www.venomdoc.com