Hawks in Hawaii: identification guide and where to start looking

1. What is the only hawk species native to Hawaii?

The Hawaiian Hawk or ʻIo (Buteo solitarius) is the sole breeding hawk in the state. It is a compact buteo found only on the Big Island. Unlike mainland hawks, it has two color phases: dark and light. Dark-phase birds are entirely brown, while light-phase birds have a white belly and breast with brown streaking.

See ourstate wildlife pagefor the next step.

2. How can you identify a Hawaiian Hawk in the field?

Look for a medium-sized hawk with broad, rounded wings and a short, squared tail. Adults measure 16 to 18 inches long with a wingspan of about 40 inches. The bill is relatively short and hooked. In flight, the wings are held flat or slightly raised, and they often soar in circles. Light-phase birds show a pale head and dark eye patch.

See ourHawks guidefor the next step.

3. What birds are most often confused with hawks in Hawaii?

The Pueo (Hawaiian Short-eared Owl) is frequently mistaken for a hawk when seen in daytime, but it has a rounder head, broader wings, and a moth-like flight. The Northern Harrier is a rare migrant that glides low over marshes but has a white rump patch and a more slender build. Introduced birds like the Common Peafowl or Wild Turkey can also cause confusion from a distance.

See ourstate animal guidefor the next step.

4. Where in Hawaii are you most likely to see a hawk?

The ʻIo is concentrated on the Big Island, especially in drier habitats. Reliable spots include Hawaii Volcanoes National Park along the Chain of Craters Road, the ranchlands near Parker Ranch, and the slopes of Mauna Kea and Mauna Loa. They perch on utility poles, trees, or fence posts, watching for prey. Early morning and late afternoon offer the best activity.

5. When is the best time of year for confident sightings?

The ʻIo can be seen year-round. Breeding season from April to July may increase visibility as adults hunt more frequently to feed young. Weather matters: clear mornings with light trade winds bring hawks up to soar. Heavy rain or fog pushes them to seek cover, so check the forecast before heading out.

6. Are there any other hawk species that visit Hawaii?

Occasional vagrant hawks appear, such as the Osprey (a fish hawk) and the Peregrine Falcon (not a true hawk but a falcon). The Northern Harrier is a rare winter visitor. None of these breed. The only year-round resident is the ʻIo, so any hawk sighting away from the Big Island is almost certainly a migrant or a misidentified owl.

7. How does the Hawaiian Hawk compare to mainland red-tailed hawks?

Both are buteos, but the ʻIo is significantly smaller than the Red-tailed Hawk and has a more slender build. The ʻIo lacks the red tail of adult red-tails; its tail is banded brown and white. The call is a high-pitched, descending whistle, unlike the raspy scream of a red-tail. Ecologically, the ʻIo fills a similar role but preys more on insects and small birds.

8. Show your support for Hawaiian hawk conservation with hawk-themed gear

After a day of spotting the ʻIo, you can bring home a reminder of Hawaii's unique raptor. Easy Street Markets offers a range of hawk-themed items for fans of these birds.

### 5X Hawk Sticker Set (5 pieces): Bird of Prey Car Stickers, Forest, Nature, Falconer, Bird

Perfect for decorating binocular cases, notebooks, or water bottles. Each set includes five detailed hawk illustrations.Check Price and Availability

### Vintage Hawk Retro Hawk Bird T-Shirt

A retro-style tee with a classic hawk silhouette. Comfortable for fieldwork or casual wear.Check Price and Availability

### Hawk Tarot Card T-Shirt

A unique design featuring a hawk on a tarot card. Great for birders with a mystical side.Check Price and Availability

If you're looking for something different, browse our full collection ofbird wall artand other raptor gifts.

### Peregrine Falcon Retro Graphic Tee

A strong match for this wildlife page and an easy next click after the guide.Check Price and Availability

9. Frequently asked questions about hawks in Hawaii

**Are Hawaiian Hawks endangered?** The ʻIo is listed as Near Threatened under the IUCN and is protected by state and federal laws. Its population is stable but limited to the Big Island.

**Can you see hawks on Oahu or Maui?** No, the ʻIo does not occur on other islands. Sightings reported elsewhere are usually misidentified Pueo owls or escaped pet birds.

**What do Hawaiian Hawks eat?** They hunt small mammals, birds, insects, and occasionally carrion. In ranchlands they often catch mice and rats.

**Do Hawaiian Hawks migrate?** No, they are resident year-round on the Big Island. Juveniles may disperse short distances but do not leave the island.

**How can I tell a light-phase ʻIo from a Northern Harrier?** Light-phase ʻIo has a white belly and dark wingtips; the harrier has a white rump, longer tail, and glides with wings in a V-shape.

See ourtour planning ideasfor the next step.