California clapper rails occur almost exclusively in tidal and brackish marshes with unrestricted daily tidal flows, adequate invertebrate prey food supply, well-developed tidal channel networks, and suitable nesting and escape cover to provide habitat during extreme high tides.

The California clapper rail lives in coastal salt and brackish marshes and tidal sloughs of San Francisco Bay and Suisun Bay. This secretive waterbird, when fully grown measures about 1 to 1.5 ft (32 - 47 cm) long. Males and females are similar in …

Clapper rails use a network of small tidal sloughs for foraging and quick escape. They construct nests near them (within 10 meters), canopied with either pickleweed or cordgrass, sometimes gum-plant, salt grass, or drift materials.

The California Ridgeway's Rail (formerly Clapper Rail) or Rallus longirostris obsoletus is one of the most endangered birds in California. Santa Venetia Marsh Open Space Preserve is a fragile salt water marsh ecosystem in North San Rafael.

The California clapper rail is a largish, brownish endangered marsh bird with carrot-stick legs and a long, glowing-orange bill. It is a subspecies of the common clapper rail, Rallus longirostris, and to keep it sorted the famed 19th-century Smithsonian ornithologist Robert Ridgway appended the subspecies name obsoletus: the long-nosed ...

Surveys conducted for clapper rail presence near the Richmond Field Station in February 2003, observed clapper rails using marsh habitat in Western Stege Marsh and south of the East Bay Regional Parks District Bay trail.

2015年6月1日 · The California clapper rail (Rallus longirostris obsoletus) is one of the largest rails (family Rallidae), measuring 13-19 inches from bill to tail. It is characterized by its hen-like appearance, a long, slightly downward-curving bill, olive-brown upper parts, a cinnamon-buff colored breast,...

The California clapper rail is one of the largest species of the genus Rallus, measuring 13-19 in (32-47 cm) from bill to tail. It has a henlike appearance with strong legs, long toes, and a long bill. It has a cinnamon-colored breast, dark flanks with white bars, and olive-brown upper parts.

2024年1月31日 · Ridgway’s Rail, formerly known as the California Clapper Rail, is a medium-sized marsh bird found exclusively in coastal wetlands of California and Baja California. Over the past century, habitat loss and degradation have caused significant population declines, leading to special conservation status for this species.

2023年7月12日 · The California Clapper Rail (Rallus longirostris obsoletus) is an endangered subspecies of the Clapper Rail (R. longirostris). It is found principally in California’s San Francisco Bay, and also in Monterey Bay and Morro Bay.