How long will a wren stay full after eating a human
A wren (8–12 grams, 2 years 4 months) can feed on a human (62–76 kilograms, 33 years): one prey keeps it full for 17–23 years, so it needs about 0 per day.
How long does a human last a wren?
About 17–23 years.
How many humans does a wren eat per day?
About 0 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.