The hummingbird can digest nectar very rapidly and efficiently. The nectar will pass entirely through the hummingbird’s digestive system in less than 20 minutes! Due to the large amount of fluid a hummingbird will intake each day, a hummingbird’s daily urine output may exceed 80 percent of its body weight, whenever nectar is found to be plentiful.
So, just what determines the amount of nectar a hummingbird must consume each day? The answer may surprise you. The amount of nectar that a hummingbird must intake each day is dependent on a number of factors including activity level, air temperature, quality of available resources, and time of year. The hummingbird will require one and a half times its body weight in nectar to meet its daily energy needs.