Bycanistes subcylindricus
| Kingdom |
Phylum |
Class |
Order |
Family |
| ANIMALIA |
CHORDATA |
AVES |
CORACIIFORMES |
BUCEROTIDAE |
| Scientific Name: |
Bycanistes subcylindricus |
| Species Authority: |
(Sclater, 1870) |
Common Name/s:
| English |
– |
Black-and-white-casqued Hornbill, Black-and-white Casqued Hornbill |
| French |
– |
Calao à joues grises |
|
Assessment Information
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| Red List Category & Criteria: |
Least Concern
ver 3.1
|
| Year Published: |
2012 |
| Assessor/s: |
BirdLife International |
| Reviewer/s: |
Butchart, S. & Symes, A. |
| Contributor/s: |
|
Justification:
This species has a very large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend is not known, but the population is not believed to be decreasing sufficiently rapidly to approach the thresholds under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
|
| History: |
| 2009 |
– |
Least Concern
|
| 2008 |
– |
Least Concern
|
| 2004 |
– |
Least Concern
|
|
Geographic Range
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| Countries: |
Native: Angola (Angola); Benin; Burundi; Cameroon; Central African Republic; Congo; Congo, The Democratic Republic of the; Côte d'Ivoire; Equatorial Guinea; Gabon; Ghana; Guinea-Bissau; Kenya; Liberia; Nigeria; Rwanda; Sierra Leone; South Sudan; Sudan; Tanzania, United Republic of; Togo; Uganda |
| Range Map: |
Click here to open the map viewer and explore range. |
Population
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| Population: |
The global population size has not been quantified, but the species is reported to be locally uncommon to common (del Hoyo et al. 2001).
|
| Population Trend: |
Unknown
|
Habitat and Ecology
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