Adult males have a maximum wingspan of over 1 meter and they can weigh up to 1 kg. During the day the Grey headed flying fox can be found together with small groups to tens of thousands of bats at large 'roosts' (camps or colonies).
The total population is about 300,000 and it has been suggested that they have declined in numbers as much as 30% in the last decade alone. Recent research has shown that since 1994, more than 24,500 grey-headed flying foxes have died from extreme heat events alone.
The main threats of the Grey headed flying fox are
- habitat destruction due to the building of houses and the clearing for agriculture.
- disturbance of roosting sites
- Unregulated shooting
- Electrocution on power lines
- Competition and hybridisation with the Black Flying-fox (Pteropus alecto)
- Extreme heat events
Interesting fact The Grey-headed flying fox can become very old for a mammal of its size.
Picture of the grey-headed flying fox by benjamint444 licensed under GFDL
The Gray-headed flying fox, grey-headed flying-fox is listed as Least Concern (LR/lc), lowest risk. Does not qualify for a more at risk category. Widespread and abundant taxa are included in this category, on the IUCN Red List of Threatened Species
Namings for the grayheaded flying foxA grayheaded flying fox group is called a 'flock'.
Some facts about the
Gray-headed flying fox
Adult weight : 0.675 kg (1.485 lbs)
Maximum longevity : 24 years
Female maturity :540 days
Male maturity : 540 days
Litter size : 1
Weight at birth : 0.08 kg (0.176 lbs)
Basal metabolic rate : 2 W
Body mass : 0.598 kg (1.3156 lbs)
Temperature : 36.85 °C (98.33 °F)