Laserfiche WebLink
break the fences, surmount the obstructions and treat that place with the same lack of <br />concern they feel has been shown them as residents and visitors to this place. <br />Although the Recovery Plan for the California Clapper Rail and the Salt Marsh <br />Harvest Mouse does not allege domestic pets or human contact as a limiting factor in <br />recovery, the biological opinion focused on it. In the sections of the opinion <br />referring to humans and domestic pets the helping verb goes from "is- shall - will," <br />when describing the effects of the "best science" of natural predation, to "may - <br />should- could," when subjectively describing supposed urban effects. <br />The controversy at the Redwood Shores levee <br />grew because the habitat was viewed in isolation from <br />the rest of the Bair Island Complex. The controversy <br />was focused solely on a small strip of a sloping levee <br />wall. The assumed fragility of the Bird Island <br />ecosystem was based in large part on the uncertain <br />status of the Bair Island Complex. It drove many <br />assumptions. <br />Now, with the acquisition of the Bair Island Complex, these governments can <br />use a broader palette to paint the future together. They can spread their plans out <br />and distribute any impacts over a broader geography. New perspective means that <br />we can, with better understanding, address the wider relationship of Bird Island with <br />the greater refuge. <br />In its proper perspective, Bird Island is additional habitat for California Clapper <br />Rail on Outer Bair Island across Steinberger's Creek and adjacent to upland habitat <br />and tidal refugia across Bay Slough. Clapper Rail survey data show a population on <br />Bird Island of fewer than 10 birds. Since the rail data is gathered in the winter, we <br />have no data to show if Bird Island is used as a rail nesting habitat. If rails are nesting <br />at Bird Island, the results of that union (generally clutches range from 5 to 14 eggs) <br />are not populating Bird Island. The Bird Island population, if a stable resident <br />population at all, remains small. Bair Island has a much larger population and will <br />always be the source population for the birds of Bird Island. <br />On Bird Island, chicks and young adults are most likely either lost to predation <br />(Redwood City Marsh, in FWS ownership, contains low elevation perch opportunities <br />for raptors from abandoned pilings) or relocation to the larger habitat on Outer Bair <br />Island. <br />The levees at Redwood Shores were raised to a uniform 10 feet in order to <br />protect public safety. Bird Island is marginal habit for the California Clapper rail. <br />NM <br />Levee Height and Refugia <br />