Bird / Anastomus oscitans

Asian Openbill

LC

Lowest risk

Native

The Asian openbill or Asian openbill stork is a large wading bird in the stork family Ciconiidae. This distinctive stork is found mainly in the Indian subcontinent and Southeast Asia. It is greyish or white with glossy black wings and tail and the adults have a gap between the arched upper mandible and recurved lower mandible. Young birds are born without this gap which is thought to be an adaptation that aids in the handling of snails, their main prey. Although resident within their range, they make long distance movements in response to weather and food availability.

Range elevation
385 to 1100 m
Range depth
0.1 to 0.5 m
Range mass
1.3 to 8.9 kg
Average length
81 cm
Range wingspan
147 to 149 cm
Breeding interval
Breeding season for Asian openbills occurs once each year.
Breeding season
Asian openbills breed from June to December.
Range eggs per season
2 to 5
Average eggs per season
3
Range time to hatching
27 to 30 days
Range fledging age
35 to 36 days
Average time to independence
60 days
Average age at sexual or reproductive maturity (female)
2 months
Average age at sexual or reproductive maturity (male)
2 months
Range lifespan
Status: captivity
18 (high) years

Quasmieh, S. 2013. "Anastomus oscitans" (On-line), Animal Diversity Web. Accessed November 10, 2020 at https://animaldiversity.org/accounts/Anastomus_oscitans/

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