What is a fruit bat ?

Many microbats have various facial protuberances,used in echolocation,which make it hart to refer to them as "cute". Fruit bats don't echolocate and have large eyes designed to be efficient at twilight. Their bodys are plump and furry. They are so cute!! Combined head and body length is about 20cm and wingspan can be as much as about 90cm.
They live in subtropical and tropical areas. Ryukyu Flying Foxes living in Kuchinoerabu are the northernmost of all the world's flying foxes. In winter they become less active in the low temperatures and are difficult to find, but they don't hibernate.
Bats have four very long fingers and a short thumb to each wing. The wing membranes are attached to the fingers and to the legs. They have a claw on the second finger in addition to the claw on the thumb. These are used to manipulate fruit and leaves.
Fruit bats make audible sounds. When two individuals meet they hit each other with their wings and scream loudly. Large colonies are occasionally very noisy with monkey-like screams. As fruit bats roost in trees out in the open their loud chattering can be heard from far away.
Fruit bats feed almost exclusively on fruit. They crush the fruit to extract the juice and spit out the pulp. The droppings are liquid. They look like bird droppings but lack uric acid crystals. They drop seeds in flight over a wide area, giving them a good chance of germination. Sometime they eat the pollen and the nectar of the flowers of mescal,palm and garcinia and so help in pollination. When fruit and flowers are in short supply in the woods they also eat leaves. Fruit bats have a good sense of smell. Many tropical fruits and flowers that bloom at night have scents that attract fruit bats.
Fruit bats don't use echolocation and have keen vision. As they can't see in total darkness,. they fly using moonlight,starlight and townlight. During the day they roost in trees not caves. Sometime they fly during the day.

There are few bat biologists so the life of fruit bat has not, as yet, been well studied. I have read that P.d.daitoensis mate in November and December,but I have watched them mating at the end of the year and into the new year. Babies are born in May or June. Their roosts are not always permanent. They roost in small groups or singly. Sometimes they roost in large colonies. Bonin Flying Foxes in Titijima Island have large fixed colonies from January to April. They wake up at sunset. When the sun sets and the sky darkens their voices are heard from the roost. About 30 minutes after sunset they assemble at the feeding site. For the following 2 or 3 hours they are very active feeding and chasing each other. As night draws on they disperse and rest. They begin to return to the roost 1 hour before sunrise and go to sleep at dawn. Sometime ,when it is cloudy, they don't return to the roost until after sunrise.