steven callahan was the man who survived 76 days in the ocean.
steven callahan was the man who survived 76 days in the ocean.
man who survived 76 days in the ocean?
steven callahan
adrift: 76 days lost at sea









































adrift: 76 days lost at sea is a 1986 memoir by steven callahan about his survival alone in a life raft in the atlantic ocean, which lasted 76 days.









































section::::sailing.
adrift: 76 days lost at sea
after hatching, the male kill rate rises to one kill every 1.5 days. pair behavior while raising chicks is very variable, some males are very attentive to their young, while others leave virtually all brooding to the female. after 40 days of age, the young is capable of feeding itself, though is often still fed. the first feathers through the white down emerge when the crowned eagle chick is 40 days old, with the feathers ultimately covering the down in 76 days. after 76 days, the main feather development is in the tail or the wings. wing flapping begins at 45 to 50 days, increasing after around 75 days. the young fledge at 90 to 115 days, with an average 110.6 days and any period of time less than 100 days is considered unusually soon. on average, male chicks tend to be more active wing-flappers and usually will first fly around 10 days earlier than female chicks. after fledging, females are attentive 95% of the day and brood 50–75% of the day, the amount decreasing slightly with each day. the female does much of the prey capture and a majority of the nest defense after the young fledge. after fledging, the young remain in the neighborhood of the parent's nest and are fed every 3 to 5 days by either parent for their first 270–350 days of life. the rate of food-delivery varies from several times a day to every 3 days on average during the post-fledging period. the fledged juvenile will solicit adults (apparently even unrelated adults) for food but does not actually take the prey unless this occurs around the nest site. the first recorded kill for a young crowned occurred 61 days after fledging, although this is considered exceptionally early by the standards of this species. flights increase incrementally through the post-fledging period, although the young do not engage in rising flights until they are fully independent. independence appears to be triggered by the increased indifference of parents to bringing food. due to the loud vocal interplay between the parents and the fledging eagle, the adults seem to take it as a sign that their offspring has sought independence if they return to the nesting area and hear no begging auditory response. the young eagle usually remains in the care of its parents for a total of up to 11 months after it fledges, longer than is known in almost any other raptor. the advantage of this prolonged stretch to independence is that it may make for a stronger young eagle when compared to other accipitrids which have almost no post-fledging dependency period. in 34 possible cases, 18 resulted in eggs being laid. fledging success is approximately 83% and almost all young that leave the nest also reach independence.
crowned eagle