Petit-duc maculé vs Grand-duc d'Amérique

The Eastern Screech-Owl and Great Horned Owl can be distinguished by size and vocalizations. The Eastern Screech-Owl is much smaller and has a distinctive descending trill, while the Great Horned Owl is larger with prominent ear tufts and a deep hooting call.

1. Size: The Eastern Screech-Owl is much smaller than the Great Horned Owl. 2. Ear Tufts: The Great Horned Owl has prominent ear tufts, which the Eastern Screech-Owl lacks. 3. Vocalization: Listen for the Eastern Screech-Owl's descending trill versus the Great Horned Owl's deep hoots.

The Eastern Screech-Owl is significantly smaller than the Great Horned Owl.

The Eastern Screech-Owl has two color morphs, rufous and gray, and lacks the prominent ear tufts of the Great Horned Owl. The Great Horned Owl is larger with a mottled brown and gray plumage and distinct ear tufts.

The Eastern Screech-Owl has a descending trill, while the Great Horned Owl produces a series of deep hoots.