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The clapper rail is found along the Atlantic coasts of the eastern U.S., the Gulf of Mexico, eastern Mexico, some Caribbean islands, and south through eastern Central America, as well at several inland locales. Populations are stable on the East Coast of the U.S., although the numbers of this bird have declined due to habitat loss.
Ridgway's rail then breeds (California rail subspecies) in the San Francisco Bay from mid-March through August, with peak activity in late June. [6] During this breeding season the bird density was approximately 0.1 to 0.6 individuals per acre; outside of breeding season densities decline to 0.04 to 0.40 individuals per acre. [10]
It serves as a critical habitat and winter stopover for many birds along the Pacific Flyway. Among the birds found at the refuge are great blue herons and the three endangered bird species: California clapper rail, California least tern, and Belding's Savannah sparrow. [3] [4] The refuge is located within Naval Weapons Station Seal Beach ...
Numerous birds have been known to live on Hooks Island, such as the near-threatened California clapper rail. [10] In 2011, a Point Reyes Bird Observatory Conservation Science report found that approximately 14 clapper rails had been found in the Baylands, and 19 clapper rails were "known to exist" at Palo Alto Harbor and Hooks Island. [11]
It was founded in 1974 as the first urban National Wildlife Refuge established in the United States, and it is dedicated to preserving and enhancing wildlife habitat, protecting migratory birds, protecting threatened and endangered species, and providing opportunities for wildlife-oriented recreation and nature study for the surrounding communities.
It is a feeding and resting area for a panoply of estuarine and pelagic birds, while its associated marshes and littoral zones support a variety of animal and plant life. Richardson Bay has been designated as an Important Bird Area (IBA), based upon its large number of annual bird visitors and residents, its sightings of California clapper rail ...
California lizardfish; Calosima munroei; Mission blue butterfly; Porcellio formosus; California clapper rail, also found nominally in other locales, this bird has gotten extensive attention in the Bay Area; Salt marsh harvest mouse; San Bruno elfin butterfly; San Francisco garter snake, San Mateo and northern Santa Cruz County; Sorex ornatus ...
Endemic birds of the Western United States (6 P) Pages in category "Endemic birds of the United States" ... California clapper rail; Cassia crossbill; M. McKay's bunting