Birds Active at night

Elf Owl

Micrathene whitneyi

iNaturalist eBird Wikipedia

The Elf Owl is the world's smallest owl, a sparrow-sized desert specialist that makes its home in the hollows of giant saguaro cacti. Tiny but tenacious, this nocturnal hunter is a master of the Southwestern skies.

0 Sightings

0 Habitats

Quick Identification

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Size

Length: 12.5–14.5 cm (4.9–5.7 in); Wingspan: 27 cm (10.5 in); Weight: 35–55 g (1.2–1.9 oz)

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Colors

Mottled grayish-brown with buff and white spotting; white belly with brownish streaks; pale yellow eyes with white facial 'eyebrows'. No significant difference between sexes.

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Key Features

World's smallest owl, roughly the size of a sparrow
Pale yellow eyes highlighted by thin white 'V' shaped eyebrows
Short tail and rounded head without ear tufts
Gray bill with a lighter, horn-colored tip

When You’ll See Them

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Activity pattern Active at night

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Peak hours 8 PM - 4 AM

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Season April-August

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Diet Primarily insectivorous; feeds on crickets, moths, beetles, centipedes, and scorpions (carefully removing the stinger before eating).

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Habitat Arid deserts with saguaro cacti, thorn scrub, and riparian woodlands containing oak or sycamore trees.

public Geographic range

Where Does the Elf Owl Live?

The Elf Owl is native to the North American continent, specifically localized within the Southwestern United States and much of Mexico. Its core range includes the desert regions of Arizona and New Mexico, extending south through the Baja California peninsula and into central Mexico. While southern populations in Mexico may stay put, those nesting in the United States are migratory, traveling south to spend the winter months in warmer tropical scrublands.

Basemap © OpenStreetMap contributors

2 Countries

1.2M km² Range

Least Concern Conservation

US United States MX Mexico

Elevation range

0 m1,000 m2,000 m4,000 m

Sea level – 2,000 m

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iNaturalist / Verified observation data

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Behavior

The Elf Owl is a strictly nocturnal hunter, emerging from its daytime roost shortly after sunset. Despite their diminutive size, they are remarkably agile and aggressive hunters, often catching insects in mid-air or plucking them from the ground. They are known for their distinctive vocalizations, which include a series of high-pitched yaps, chuckles, and whinnies that can sound surprisingly like a small puppy.

These owls are highly dependent on existing cavities for survival, particularly those excavated by Gila Woodpeckers or Gilded Flickers in saguaro cacti. During the day, they retreat deep into these holes to escape the desert heat and predators. While they are relatively social during the breeding season, they are generally solitary or paired, defending their specific nesting cavity with vigor.

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Camera Tips

To capture the world's smallest owl, focus your camera setup on known or potential nesting cavities. In desert environments, look for woodpecker holes in mature saguaro cacti; in wooded areas, look for cavities in oak or sycamore trees. Mount your camera 6 to 10 feet away from the entrance at roughly the same height as the hole. Because these birds are tiny, a standard wide-angle trail camera might fail to capture fine details, so use a camera with high-resolution sensors and a fast trigger speed to catch them as they land.

Since Elf Owls are strictly nocturnal, your camera's infrared (IR) performance is critical. Ensure the IR flash isn't too powerful for the distance, or you risk 'white-out' on the owl's pale belly feathers. Positioning the camera to face a prominent 'staging' branch—a branch near the nest where the owl often lands before entering—is often more successful than aiming directly at the hole itself. Look for white 'whitewash' (droppings) on branches to identify these frequent perches.

While you should never use birdseed or meat to bait owls, you can attract them indirectly by attracting their prey. A small, low-heat bug light placed near your camera's field of view can draw in the moths and beetles that Elf Owls hunt. Set your camera to 'Burst Mode' or 'Photo + Video' to capture both their lightning-fast flight and their unique 'puppy-like' vocalizations. Peak activity occurs in the two hours following sunset and the hour before dawn during the spring breeding season.

Similar Species

Species that look similar or are commonly confused with Elf Owl.

Flammulated Owl

Slightly larger than the Elf Owl and features dark, chocolate-brown eyes instead of the Elf Owl's yellow eyes.

Western Screech-Owl

Significantly larger with prominent ear tufts and a more heavily streaked chest pattern.

Ferruginous Pygmy-Owl

Often active during the day and has two dark 'false eye' spots on the back of its neck.

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Frequently Asked Questions

Elf Owls are strictly nocturnal. They typically emerge from their roosting cavities about 15 to 30 minutes after sunset and remain active throughout the night, with peak hunting periods occurring in the early evening and just before dawn.

If you live within their desert or riparian range, you can attract Elf Owls by preserving old trees with woodpecker holes or installing a specially designed Elf Owl nesting box. Avoid using pesticides, as these owls rely entirely on a healthy population of large insects like crickets and moths for food.

Their diet consists almost exclusively of invertebrates. This includes moths, crickets, beetles, centipedes, and scorpions. They are highly skilled hunters and are even known to remove the venomous stingers from scorpions before feeding them to their chicks.

They can be common in suburban areas that border natural desert or wooded canyons, provided there are enough nesting cavities and limited light pollution. They are more often heard than seen, so listen for their puppy-like yapping calls on spring nights.

The easiest way to tell them apart is size and features; Elf Owls are much smaller (about 5 inches vs 8-10 inches) and lack the 'ear tufts' that Western Screech-Owls possess. Additionally, Elf Owls have a distinct puppy-like call compared to the 'bouncing ball' whistle of the Screech-Owl.

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