Matsudaira's Storm Petrel (Hydrobates matsudairae)
Illustration redrawn by AI from a real photograph

Matsudaira's Storm Petrel

Hydrobates matsudairae (Kuroda, Nm, 1922)

≈25 cmLength62 gWeight

It has a long, deeply forked tail and a long bill with a conspicuously hooked tip.

Most records: Guam

Vulnerable

How to identify

Field marks

  1. Tail long and deeply forked
  2. Bill long, with strongly downhooked tip
  3. Primaries dark with white bases

Where and when it's recorded

Most records: Guam

Matsudaira's Storm Petrel has been recorded at 1 of the 8,276 birding hotspots we track, in 1 country or region.

Records by month Northern Hemisphere

Where it's recorded most

  1. Pago BayGuam1 record

Countries and regions with the most records

Guam

eBird records via GBIF up to 2024-12-31. A record means someone listed it; more records partly mean more birders, not more birds.

Questions

How big is the Matsudaira's Storm Petrel?

The Matsudaira's Storm Petrel is about ≈25 cm long and weighs around 62 g.

Where does the Matsudaira's Storm Petrel live?

Its breeding range: Indian Ocean, Pacific Ocean: Kita-Iwojima and Minami-Iwojima (Iwo=Volcano Islands, south of Ogasawara=Bonin Islands, south of Japan). It is most often recorded in Guam.

Is the Matsudaira's Storm Petrel endangered?

The IUCN Red List classifies the Matsudaira's Storm Petrel as Vulnerable.

What does the Matsudaira's Storm Petrel eat?

Main food: Fish, shrimp & shellfish.

What family is the Matsudaira's Storm Petrel in?

It belongs to the family Northern Storm Petrels (Hydrobatidae), order Procellariiformes.

At a glance

Length
≈25 cm
Weight
62 g
Habitat
Ocean
Diet
Fish, shrimp & shellfish
Lifestyle
Feeds in the air
Migration
Migratory
Conservation
Vulnerable
More measurements
Wing
185 mm
Tail
91 mm
Bill
20 mm
Tarsus
25 mm

Averages from the AVONET dataset; length from field guides where available.

Range

Indian Ocean, Pacific Ocean: Kita-Iwojima and Minami-Iwojima (Iwo=Volcano Islands, south of Ogasawara=Bonin Islands, south of Japan)

Breeding range, IOC World Bird List 15.2

Classification

Family
Northern Storm Petrels Hydrobatidae
Genus
Hydrobates

Other birds in the genus Hydrobates

European Storm PetrelEuropean Storm PetrelHydrobates pelagicusFork-tailed Storm PetrelFork-tailed Storm PetrelHydrobates furcatusRinged Storm PetrelRinged Storm PetrelHydrobates hornbyiSwinhoe's Storm PetrelSwinhoe's Storm PetrelHydrobates monorhisLeach's Storm PetrelLeach's Storm PetrelHydrobates leucorhousTownsend's Storm PetrelTownsend's Storm PetrelHydrobates socorroensisAinley's Storm PetrelAinley's Storm PetrelHydrobates cheimomnestesAshy Storm PetrelAshy Storm PetrelHydrobates homochroaBand-rumped Storm PetrelBand-rumped Storm PetrelHydrobates castroMonteiro's Storm PetrelMonteiro's Storm PetrelHydrobates monteiroiCape Verde Storm PetrelCape Verde Storm PetrelHydrobates jabejabeWedge-rumped Storm PetrelWedge-rumped Storm PetrelHydrobates tethys
Matsudaira's Storm Petrel

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Free to use with credit: “Illustration: Bird Album (birdalbum.com)”. Drawn by AI from a reference photo by Yann Muzika. ↗

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