Hawaiian Hawk

Buteo solitarius

Near Threatened · IUCN Red List

NTNear ThreatenedEndemicVertebratesForestPlatform nestLarge · 501 g

What the Hawaiian Hawk sounds like

Sonogram of the Hawaiian Hawk: time runs left to right, pitch bottom to top, and the brighter the mark the louder the sound.
Recorded by Niels Krabbe · Call · Zamora-Chinchipe: left bank Río Numpatakaime (C. Plateado trail camp 1), Ecuador · CC BY-SA 4.0 · via xeno-canto

ID tip

The Hawaiian hawk measures approximately 40 to 46 centimetres (16 to 18 in) in length. The female, which weighs 605 g (21.3 oz) on average, is larger than the male, which averages 441 g (15.6 oz). Two color phases exist: a dark phase (dark brown head, breast, and underwings), and a light color phase (dark head, light breast and light underwings). Feet and legs are yellowish in adults and greenish in juveniles. During breeding season one of the pair, possibly the female, has a distinctive yellow forecap area just above the upper mandible.

Text from Wikipedia, licensed CC BY-SA 4.0.

When to see the Hawaiian Hawk

One bar for each month, and every month is filled: this bird is recorded here in all twelve. The wide bar is March, the month with the most records.

Where to see the Hawaiian Hawk

Regular range

The map shades 1 country with regular records. Everything unshaded has no records. Countries are listed below the map.

About the Hawaiian Hawk

The Hawaiian hawk or ʻio is a raptor in the genus Buteo endemic to Hawaiʻi, currently restricted to the Big Island. The ʻio is one of two extant birds of prey that are native to Hawaiʻi, the other being the pueo and fossil evidence indicates that it inhabited the island of Hawaiʻi, Molokaʻi, Oʻahu, Maui and Kauaʻi at one time. Today, it is known to breed only on the Big Island, in stands of native ʻōhiʻa lehua trees. The species was protected as an endangered species in the United States, but was delisted in 2020. However, the IUCN classifies the species as Near Threatened. NatureServe considers the species Vulnerable.

Text adapted from Wikipedia, licensed CC BY-SA 4.0.

Easily confused with

Side by side: Hawaiian Hawk vs Upland Buzzard · Black-breasted Buzzard vs Hawaiian Hawk · Forest Buzzard vs Hawaiian Hawk · Galapagos Hawk vs Hawaiian Hawk

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