most likely 4-6 weeks!!! did some research on people who have gone without food for extended periods of time: Medical Doctors Commonly cite 4 to 6 weeks without food 10 Political...
A human can't live without food for 3 or 4 days (however your body type is,) and a human can't live without water for 2 or 3 days.
A chicken can last up to 2 weeks without food or water
a budgie will starve to death in two days
they can go 100 days without food.