Ashy Storm-petrel vs Swinhoe's Storm-petrel

Hydrobates homochroa ile kıyaslandığında Hydrobates monorhis

Side-by-Side Comparison

Özellik Ashy Storm-petrel Swinhoe's Storm-petrel
Bilimsel Ad Hydrobates homochroa Hydrobates monorhis
Takım Procellariiformes Procellariiformes
Familya Hydrobatidae Hydrobatidae
Koruma Durumu Endangered Near Threatened
Uzunluk
Kanat Açıklığı 26,6 cm (10.5 in) 30,5 cm (12.0 in)
Ağırlık 36,333333333333336 g (1.28 oz) 39,55 g (1.40 oz)
Beslenme -- --
Kuluçka Büyüklüğü 1 1
Population Trend

Koruma Durumu

Endangered

Ashy Storm-petrel

Near Threatened

Swinhoe's Storm-petrel

About These Birds

Ashy Storm-petrel

Ashy Storm-petrel, 19–21 cm, is restricted to the California Current of the eastern Pacific; breeding on Channel Islands and the Farallon Islands. Entirely ashy brown without white rump — uncommon among storm-petrels. Endangered; less than 10,000 individuals; threatened by light pollution and introduced predators.

Swinhoe's Storm-petrel

Swinhoe's Storm-petrel, 19–20 cm, breeds on small islands off Korea and in the western North Pacific, wintering in the Indian Ocean. Entirely dark sooty brown with a forked tail and white rump largely hidden. Long-distance migrant crossing two oceans. Planktivore; poorly studied due to nocturnal, crevice-nesting habits.

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