American Robin vs Common Ostrich
Turdus migratorius compared with Struthio camelus
Side-by-Side Comparison
| Attribute | American Robin | Common Ostrich |
|---|---|---|
| Scientific Name | Turdus migratorius | Struthio camelus |
| Order | Passeriformes | Struthioniformes |
| Family | Turdidae | Struthionidae |
| Conservation Status | Least Concern | Least Concern |
| Length | 25.0 cm (9.8 in) | 210.0 cm (82.7 in) |
| Wingspan | 36.0 cm (14.2 in) | 200.0 cm (78.7 in) |
| Weight | 77.0 g (2.72 oz) | 100000.0 g (3527.40 oz) |
| Diet | Earthworms, insects, and fruit. Famously hunts earthworms on lawns by running, stopping, and tilting its … | Omnivorous — plants, seeds, roots, flowers, insects, and small vertebrates. Swallows pebbles to aid digestion … |
| Clutch Size | 2-4 | 2-11 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Shared Habitats
None
American Robin only
Common Ostrich only
American Robin
Lawns, parks, gardens, farmland, and forest edges. One of the most familiar birds in suburban North America.
Common Ostrich
Open arid and semi-arid habitats including savannas, Sahel, and dry woodlands across Africa.
Song & Call Comparison
American Robin
A clear, caroling song of 2-3 note phrases: 'cheerily, cheer-up, cheerio'. Sings from dawn perches. Sharp 'tut-tut-tut' alarm call and thin 'seeee' flight note.
Common Ostrich
Male produces a surprisingly deep, resonant booming roar — remarkably lion-like. Also gives whistling and hissing sounds. Females and chicks emit softer grunts and squeaks.
Geographic Range & Migration
American Robin
North America from Alaska and Canada to Mexico. Northern populations migrate south in winter; southern populations are largely resident.
Common Ostrich
Sub-Saharan Africa. Formerly also found in the Middle East and parts of Asia. Farmed worldwide.
Conservation Status
American Robin
Common Ostrich
How to Tell Them Apart
American Robin
Dark grey-brown upperparts with a warm brick-red breast and belly. White eye-ring and streaked white throat. Female slightly paler.
Bright yellow bill with a dark tip
Common Ostrich
Males have black body plumage with white wing and tail feathers. Females and immatures are grey-brown. Bare skin on the neck and thighs varies from pink to blue.
Broad, flat bill adapted for an omnivorous diet
About These Birds
American Robin
The American robin is widely regarded as a harbinger of spring across North America. Despite its name, it is a true thrush unrelated to the European robin. American robins produce two to three broods per year and are among the earliest birds to sing in the morning chorus.
Common Ostrich
The common ostrich is the world's largest living bird, standing up to 2.7 meters tall and weighing up to 145 kg. Despite being flightless, it is the fastest bird on land, sprinting at speeds up to 70 km/h. Ostrich eggs are the largest of any living bird, weighing about 1.4 kg each.