Phalacrocorax penicillatus
| Kingdom |
Phylum |
Class |
Order |
Family |
| ANIMALIA |
CHORDATA |
AVES |
PELECANIFORMES |
PHALACROCORACIDAE |
| Scientific Name: |
Phalacrocorax penicillatus |
| Species Authority: |
(Brandt, 1837) |
Common Name/s:
| English |
– |
Brandt's Cormorant |
|
Assessment Information
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| Red List Category & Criteria: |
Least Concern
ver 3.1
|
| Year Published: |
2009 |
| Assessor/s: |
BirdLife International |
| Reviewer/s: |
Bird, J., Butchart, 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). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size is very large, and hence does not 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: |
| 2008 |
– |
Least Concern
|
| 2004 |
– |
Least Concern
|
|
Geographic Range
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| Range Description: |
Brandt's Cormorant occupies the Pacific coast of North America, ranging from south-east Alaska (USA) to Baja California (Mexico) 1.
|
| Countries: |
Native:
Canada; Mexico; United States
|
| Range Map: |
Click here to open the map viewer and explore range.
|
Habitat and Ecology
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| Habitat and Ecology: |
This species is strictly marine and is restricted to rocky coasts and islands, foraging over rocky substrates, sometimes over sand or mud, but also in mid-water. It mainly feeds on fish which it catches by pursuit-diving, and sometimes fishing co-operatively forming large aggregations. Laying occurs mainly from March to July, with individuals forming colonies sometimes alongside other seabirds. It nests on rocks, islands and sandy beaches, usually on slopes, headlands and cliff tops1.
|
| Systems: |
Terrestrial; Marine |
Bibliography
[top]
|
del Hoyo, J.; Elliot, A.; Sargatal, J. 1992. Handbook of the Birds of the World, vol. 1: Ostrich to Ducks. Lynx Edicions, Barcelona, Spain.
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