Abbotts Lagoon
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Abbotts Lagoon is a lagoon on the northwestern coast of the Point Reyes National Seashore, southwest of Tomales Point, in California, United States. The inland portion of the lagoon receives freshwater runoff, but the lagoon may be brackish from occasional winter tidal exchange along its western edge.[1] The eastern shore of the lagoon is covered with old growth northern coastal scrub including coyote bush, yellow bush lupine, sword fern and California blackberry.[2]
Geology
Abbotts Lagoon is usually separated from the Pacific Ocean by dune sand to the west. The eastern side of the lagoon is bordered by Miocene marine sediments to the north and Pliocene marine sediments to the south from sedimentary rock formations on the western side of the San Andreas Fault.[3] Santa Margarita Sandstone atop the Monterey Formation forms a ridge along the southern side of the valley containing the lagoon inland of the pedestrian bridge, and is exposed along the eastern shoreline of the lagoon seaward of the pedestrian bridge.[4]
History
Coast Miwok lived in the area before 19th-century European colonization. The lagoon land was used for cattle and dairy ranching by the 1870s.[4] Abbotts Lagoon was variously identified as Abbott's Lagoon Bombing Target, Abbott's Lagoon Target Area, Abbott's Lagoon Bombing Range, and Bombing Range Number Two while used as a dive bomber practice area by pilots from Alameda Naval Air Station and Santa Rosa outlying field from 1941 to 1952.[5] The lagoon was designated part of Point Reyes National Seashore in 1962.[4]
Recreation
Walking trails provide access to observe the birds and wildflowers of the locally unique habitats surrounding Abbotts Lagoon.[6] Brush rabbits, black-tailed jackrabbits, pocket gophers, muskrats, river otter and black-tailed deer may be seen around the lagoon. Coyote, bobcat, gray fox, long-tailed weasel, striped skunk, raccoon, badger, and cougar are rarely seen.[7]
Birding
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Bird species observed at Abbotts Lagoon include:
- Auks - common murre[8] - pigeon guillemot[8]
- Blackbirds - Brewer's blackbird[8][9] - brown-headed cowbird[8] - red-winged blackbird[6][8][9] - tricolored blackbird[8]
- Cormorants - Brandt's cormorant[8] - double-crested cormorant[8][10] - pelagic cormorant[8]
- Ducks - American wigeon[8] - bufflehead[8][11] - cinnamon teal[8] - common goldeneye[8] - common merganser[8] - gadwall[8] - greater scaup[8] - green-winged teal[8] - lesser scaup[8] - mallard[8] - northern pintail[8] - northern shoveler[8] - red-breasted merganser[8] - ring-necked duck[8][11] - ruddy duck[8][10][12] - surf scoter[8][12]
- Eagles - golden eagle[13]
- Falcons - merlin[8] - peregrine falcon[8][13] - prairie falcon[8]
- Finches - American goldfinch[8] - house finch[8]
- Geese - black brant[14]
- Grebes - black-necked grebe[8][10][12] - Clark's grebe[8][10] - horned grebe[8] - pied-billed grebe[8][11] - western grebe[8][10]
- Gulls - California gull[8] - common gull[8] - glaucous-winged gull[8] - Heermann's gull[8][15] - herring gull[8] - ring-billed gull[8] - Thayer's gull[8] - western gull[8]
- Hawks - Cooper's hawk[8][11] - ferruginous hawk[8] - northern harrier[8] - osprey[8][13] - red-shouldered hawk[8] - red-tailed hawk[8] - rough-legged buzzard[8] - sharp-shinned hawk[8] - white-tailed kite[8][11]
- Herons - American bittern[8] - great blue heron[8][10][16] - great egret[8] - snowy egret[8]
- Hummingbirds - Allen's hummingbird[8] - Anna's hummingbird[8]
- Larks - shore lark[8] - western meadowlark[8]
- Loons - black-throated loon[17] - common loon[8] - Pacific loon[8] - red-throated loon[8]
- Owls - barn owl[8] - burrowing owl[8] - short-eared owl[8]
- Pelicans - brown pelican[10][11][12] - great white pelican[8]
- Phoebes - black phoebe[8][11] - Say's phoebe[8]
- Pipits - buff-bellied pipit[8][12]
- Plovers - grey plover[10] - western snowy plover[8][11][12][15] - killdeer[9] (The western snowy plover is considered "threatened" under the Endangered Species Act.)[18]
- Quail[6][8][9][15]
- Rails - American coot[8][11] - Virginia rail[8][11]
- Raven[8]
- Sandpipers - greater yellowlegs[12] - marbled godwit[8][10] - sanderling[8][10][11][12] - willet[8] - Wilson's snipe[11]
- Sparrows - fox sparrow[8][12] - golden-crowned sparrow[8] - grasshopper sparrow[8] - Savannah sparrow[8][10] - song sparrow[8][9][11] - spotted towhee[8] - white-crowned sparrow[8][9][11]
- Swallows - barn swallow[8] - cliff swallow[8] - northern rough-winged swallow[8] - tree swallow[8] - violet-green swallow[8]
- Swans - trumpeter swan[19] - tundra swan[14]
- Terns - Caspian tern[8] - elegant tern[8]
- Thrushes - western bluebird[8]
- Vulture[8]
- Warblers - common yellowthroat[8][9] - ruby-crowned kinglet[8] - yellow-rumped warbler[8][11][12]
- Woodpeckers - northern flicker[8]
- Wrens - Bewick's wren[8] - marsh wren[8]
- Wrentit[8]
Flora
Abbotts Lagoon is the location of the single remaining natural population of the endangered plant species Sonoma spineflower (Chorizanthe valida).[20]
See also
References
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- ↑ Script error: No such module "citation/CS1".
- ↑ Stallcup, Rich & Pitkin, Melissa Discovering Birds at Point Reyes (2007) Point Reyes National Seashore Association Template:ISBN pp. 35–37
- ↑ Koenig, James B. Geologic Map of California:Santa Rosa Sheet (1976) State of California Resources Agency
- ↑ a b c Script error: No such module "citation/CS1".
- ↑ Script error: No such module "citation/CS1".
- ↑ a b c Bay Area Hiker: Abbotts Lagoon
- ↑ Stallcup, Rich & Pitkin, Melissa Discovering Birds at Point Reyes (2007) Point Reyes National Seashore Association Template:ISBN p.39
- ↑ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz ca cb cc cd ce cf cg ch ci cj ck cl cm cn co cp cq cr cs ct cu cv cw Stallcup, Rich & Pitkin, Melissa Discovering Birds at Point Reyes (2007) Point Reyes National Seashore Association Template:ISBN pp. 36–37
- ↑ a b c d e f g Script error: No such module "citation/CS1".
- ↑ a b c d e f g h i j k Adam Paul Script error: No such module "webarchive".
- ↑ a b c d e f g h i j k l m n o Point Reyes LightScript error: No such module "Unsubst".
- ↑ a b c d e f g h i j SurfBirds.com Daniel Edelstein 25 October 2009
- ↑ a b c point Reyes National Seashore
- ↑ a b Script error: No such module "citation/CS1".
- ↑ a b c Rockskipper
- ↑ Script error: No such module "citation/CS1".
- ↑ Sutton Center Script error: No such module "webarchive".
- ↑ Script error: No such module "citation/CS1".
- ↑ Fog Script error: No such module "webarchive".
- ↑ USFWS. Chorizanthe valida Five-year Review. August 2010.
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