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[HBW - BirdLife (v3)]
25/05/2024 10:49:05 AM
Species Details [Taxonomy: HBW - BirdLife (v3)]
EN
Ashy Storm-Petrel*
Id (Atlas):
Hydrobates homochroa
Description (10 )
Ashy Storm-Petrel
© uniprot.org
Family
Hydrobatidae (Northern Storm-petrels)
Size
18 - 21 cm
First Described (Guide )
(Coues, 1864)
Eastern Central Pacific (B) (NB), Mexico (B) (NB), USA (B) (NB).
Unknown to Ecuador.
Bird I, Farallon Is and Channel Is, off California (USA), south to Coronados Is (Mexico).
 
Population
Estimated population is 5,200 - 10,000 (2010) and decreasing.
Status EN
Pollution of forgaing areas, predation by introduced mammals, Western Gull (Larus occidentalis ) and Common Barn-owl (Tyto alba ), disturbance from human activity are the main threats.
For more information see BirdLife International Species Factsheet .
Food
Planktonic crustaceans, small fish. Aggregations coinciding spatially and seasonally with the spawning aggregations of sardines and anchovies.
Voice
A rising and falling purring at the nest.
Xeno-Canto Sound Files
Listen to XC838760
Ashy Storm Petrel (Hydrobates homochroa ) [XC838760 ]
by id from San Francisco, San Francisco County, California, United States (call)
Listen to XC77858
Ashy Storm Petrel (Hydrobates homochroa ) [XC77858 ]
by Matthew L. Brady from Southeast Farallon Island, United States (call, purr)
Nest
In rock crevices and burrows on offshore islands. In colonies.
Subspecies
May form superspecies with Leach's Storm-Petrel (Hydrobates leucorhous ) and Swinhoe's Storm-Petrel (Hydrobates monorhis ).
No subspecies.
Similar Species
Very similar to Black Storm-Petrel (Hydrobates melania ) but paler, smaller and with a relatively longer tail that is held upswept in flight.
References
See References .
Files:
BirdLife International
For more information about the Ashy Storm-Petrel see... BirdLife International Species Factsheet .
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