Whiskered Screech-Owl vs Western Screech-Owl

In short

The Whiskered Screech-Owl and Western Screech-Owl are similar in appearance but can be distinguished by their vocalizations and subtle plumage differences. Whiskered Screech-Owls have a more defined facial pattern with prominent whisker-like streaks, while Western Screech-Owls are generally more uniform in appearance. Their habitats overlap in some regions, but the Whiskered Screech-Owl is more commonly found in higher elevation forests.

Identification tips

• Listen for vocalizations: Whiskered's short trill vs. Western's accelerating hoots.
• Facial markings: Look for whisker-like streaks on Whiskered.
• Habitat: Elevation can be a clue; Whiskered prefers higher elevations.
• Plumage morphs: Note any rufous morphs, more common in Whiskered.

Size

Both species are small owls, similar in size, with no significant size difference to aid in field identification.

Plumage

Whiskered Screech-Owls often show more prominent facial markings, including whisker-like streaks, and a rufous morph is possible. Western Screech-Owls tend to have a more uniform gray or brown plumage without the distinct facial streaks.

Behaviour

Both species are cavity nesters and can be found in similar habitats, but Whiskered Screech-Owls are more likely to be found at higher elevations.

Habitat

Whiskered Screech-Owls prefer canyon riparian forests at elevations of 1,500–1,750 m, while Western Screech-Owls are more adaptable, found in a range of habitats including lowland riparian woodlands and suburban areas.

Voice

Whiskered Screech-Owls have a distinctive short trill and a telegraphic trill resembling Morse code. Western Screech-Owls have a series of accelerating hoots, which can be a key differentiator.