How long will a kestrel stay full after eating a human
A kestrel (136–187 grams, 7 years 11 months) can feed on a human (62–76 kilograms, 33 years): one prey keeps it full for 3–4 years, so it needs about 0.001 per day.
How long does a human last a kestrel?
About 3–4 years.
How many humans does a kestrel eat per day?
About 0.001 per day.
How is it worked out how long the food lasts?
We look at how much food such an animal needs per day and how much there is in the prey; other masses can be set in the calculator.