Trubbish for sure... jk, I would have my little pidgey use fly. If I had to eat one, it would half to be Magikarp because it is so oblivious to life that death would be much different.
for the record, a venusaur would probably last you among longer periods of time. The plant on its back is a good regrow-able food source that probably contains a bit of water, too, if low on water supplies.