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Side-by-Side Comparison

คุณสมบัติ	Ashy Storm-petrel	Monteiro's Storm-petrel
ชื่อวิทยาศาสตร์	Hydrobates homochroa	Hydrobates monteiroi
อันดับ	Procellariiformes	Procellariiformes
วงศ์ตระกูล	Hydrobatidae	Hydrobatidae
สถานะการอนุรักษ์	Endangered	Vulnerable
ความยาว	—	—
กว้างปีก	26.6 cm (10.5 in)	30.6 cm (12.0 in)
น้ำหนัก	36.333333333333336 g (1.28 oz)	45.5 g (1.60 oz)
อาหาร	--	--
จำนวนไข่	1	1
Population Trend	—	—

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Habitat Comparison

ถิ่นที่อยู่อาศัยร่วมกัน

ไม่มี

Ashy Storm-petrel only

ไม่มี

Monteiro's Storm-petrel only

🏖️ Coastal

{# ════════════════════════════════════════════════════════════════════════ Song & Call Comparison ════════════════════════════════════════════════════════════════════════ #} {# ════════════════════════════════════════════════════════════════════════ Geographic Range & Migration ════════════════════════════════════════════════════════════════════════ #} {# ════════════════════════════════════════════════════════════════════════ Conservation Status Comparison ════════════════════════════════════════════════════════════════════════ #}

สถานะการอนุรักษ์

Endangered

Ashy Storm-petrel

Vulnerable

Monteiro's Storm-petrel

{# ════════════════════════════════════════════════════════════════════════ Identification Tips — How to Tell Them Apart ════════════════════════════════════════════════════════════════════════ #} {# ════════════════════════════════════════════════════════════════════════ About Each Bird (Descriptions) ════════════════════════════════════════════════════════════════════════ #}

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.

Monteiro's Storm-petrel

Monteiro's Storm-petrel, 19–21 cm, breeds exclusively on Graciosa Island in the Azores, wintering in the central North Atlantic. Recently split from Band-rumped Storm-petrel; breeds in a different season (July–November vs March–April for Castro's). Near Threatened; very small island-restricted population.

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