Sora

Identification

The sora is a small waterbird, 19–30 cm long and weighing about 49–112 g. Adults are striking and distinctive: they have dark-marked brown upperparts contrasting with a blue-grey face and underparts, and black and white barring on the flanks. The short, thick yellow bill is marked with black at its base, and black markings extend across the face and throat. Young soras are less boldly marked, lacking the black facial markings and displaying a whitish face and buff breast instead. Sexes are similar in appearance. With a wingspan of 35–40 cm, soras are compact rails that can be confused with other rail species in rare vagrant occurrences to western Europe, particularly with the spotted crake—though that species always shows spotting on the breast, a streaked crown stripe, and a different wing pattern.

Range & Habitat

The sora is common across North America, occurring naturally in 49 US states (all except Hawaii), all 10 Canadian provinces, and two Canadian territories. Breeding populations range from Nova Scotia northwest to southern Yukon and the Northwest Territories, and south to California, Arizona, New Mexico, Pennsylvania, and New England. The species migrates to wintering grounds in the Caribbean, northern South America (including Ecuador, Colombia, and Venezuela), Mexico, and Central America. In parts of the western United States—central California and areas of Arizona and New Mexico—soras may occur year-round. They are rare vagrants to western Europe, Iceland, and Great Britain.

Soras prefer marshes dominated by cattails, sedges, bulrushes, smartweeds, rushes, rice cutgrass, and barnyard grasses. They show a preference for edge habitats and are found at higher densities in intermediate-sized marshes. They occupy wetlands of varying sizes but may use intermediate marshes more frequently than very small or very large ones.

Behaviour & Diet

Although soras are more often heard than seen, they forage while walking or swimming through wetlands. They are omnivorous, feeding on seeds, insects, and snails. The sora is famous for its distinctive vocalizations: a loud, squeaking "whinny" that decelerates and descends in pitch (often used to advertise territories) and a softer, ascending "ker-wee" or "sor-ah." The latter call may be the origin of the species' common name. These calls are often the first indication of a sora's presence.

Best Time & Places to See It

Soras are fairly common despite a decrease in suitable habitat in recent times. They breed throughout much of North America in appropriate marsh habitats from spring through breeding season. In central regions such as southern Kansas, northern Texas, and the inland southeastern United States, soras are typically observed only during spring and fall migration. To locate soras, focus on marshes with cattails, sedges, and other emergent vegetation, and listen for their distinctive calls—you are far more likely to hear one than to see it.

Photography Tips

Photographing soras presents a challenge given their secretive nature and preference for dense marsh vegetation. Early morning is best for hearing and potentially spotting them as they forage near open water or along marsh edges. Move slowly and quietly near suitable habitat, and be patient; soras sometimes walk in the open near water's edge, particularly during breeding season. Their striking blue-grey face and underparts, contrasting with dark upperparts and barred flanks, make excellent photographic subjects when you do obtain a view. A telephoto lens is valuable for capturing distant birds without disturbing them.