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California Department of Fish and Game <br /> Natural Diversity Database <br /> Full Condensed Report for Selected Elements-Multiple Records per Page <br /> Athene cunicularia <br /> burrowing owl Element Code:ABNSB10010 <br /> Status NDDB Element Ranks Other Lists <br /> Federal: None Global:G4 CDFG Status: SC <br /> State: None State:S2 <br /> Habitat Associations <br /> General: OPEN,DRY ANNUAL OR PERENIAL GRASSLANDS,DESERTS&SCRUBLANDS CHARACTERIZED BY LOW-GROWING VEGETATION. <br /> Micro:SUBTERRANEAN NESTER,DEPENDENT UPON BURROWING MAMMALS,MOST NOTABLY,THE CALIFORNIA GROUND SQUIRREL. <br /> Occurrence No.47 Map Index: 10965 EO Index: 25464 Dates Last Seen <br /> Occ Rank: Excellent Element: 2003-06-10 <br /> Origin: Natural/Native occurrence Site: 2003-06-10 <br /> Presence: Presumed Extant <br /> Trend: Unknown Record Last Updated: 2003-12-22 <br /> Quad Summary:Clifton Court Forebay(3712175/463D),Midway(3712165/445A) <br /> County Summary:Alameda <br /> LaULong: 37.74638x/-121.60246° Township: 02S <br /> UTM: Zone-10 N4178595 E623124 Range: 03E <br /> Area: Mapping PrecisionNOWSPECIFIC Section: 24 Qtr:NW <br /> Elevation: 400 ft Symbol Type:POLYGON Meridian: M <br /> Location:NORTH SIDE OF ALTAMONT PASS ROAD,1.5 MILES SW OF MOUNTAIN HOUSE,10 MILES NE OF LIVERMORE <br /> Location Detail:BURROWING OWLS WERE PASSIVELY RELOCATED FROM AN 80-ACRE GOLF COURSE SITE IN JAN 2001;SUBSEQUENTLY,THESE BIRDS WERE <br /> MONITORED FROM FEB-JUN 2001(ALL OUTSIDE THE GOLF COURSE). <br /> Ecological:HABITAT CONSISTS OF GRAZED ANNUAL GRASSLAND IN ROLLING TERRAIN,WITH VARIABLE ASPECTS AND SLOPES. <br /> Threat: THREATENED BY PROPOSED GOLF COURSE CONSTRUCTION AND WIND TURBINES. <br /> General: SINGLE BIRD OBS DURING BREEDING SEASON,30 APR 1973.4 ADULTS OBS ON 16 JAN 2001.7 PAIRS/8 JUVS OBS DURING MONITORING, <br /> FEB-JUN 2001;6 ADS/7 JUVS OBS FEB TO JUNE 2002.1 AD BANDED,31 MAY 2003;8 ADS/16 JUVS OBSERVED,10 JUN 2003. <br /> Owner/Manager:PVT <br /> Occurrence No.49 Map Index: 10955 EO Index: 8358 Dates Last Seen <br /> Occ Rank: Unknown Element: 1990-XX-XX <br /> Origin: Natural/Native occurrence Site: 1990-XX-XX <br /> Presence: Presumed Extant <br /> Trend: Unknown Record Last Updated: 1993-07-28 <br /> Quad Summary:Clifton Court Forebay(3712175/463D) <br /> County Summary:Contra Costa <br /> LaULong: 37.83373x/-121.616400 Township: 01S <br /> UTM: Zone-10 N4188269 E621752 Range: 03E <br /> Radius: 1/5 mile Mapping PrecisionNON-SPECIFIC Section: 23 Qtr:NW <br /> Elevation: 50 ft Symbol Type:POINT Meridian: M <br /> Location:NORTH OF HOLEY ROAD,BETWEEN BYRON HOT SPRINGS ROAD AND BYRON HIGHWAY(ROAD J-4),3 MILES SOUTH OF BYRON. <br /> Location Detail:BURROWS LOCATED ON THE BANK OF AN IRRIGATION DITCH IN THE VICINITY OF ALFALFA FIELDS. <br /> General: SEVERAL OBSERVED 1981-82.IN 1990,OWLS COULD BE SEEN FREQUENTLY WHILE DRIVING BY ON HOLEY ROAD. <br /> Owner/Manager:PVT <br /> Occurrence No.100 Map Index: 17250 EO Index: 12010 Dates Last Seen <br /> Occ Rank: Fair Element: 2007-01-16 <br /> Origin: Natural/Native occurrence Site: 2007-01-16 <br /> Presence: Presumed Extant <br /> Trend: Unknown Record Last Updated: 2007-05-07 <br /> Quad Summary:Clifton Court Forebay(3712175/463D) <br /> County Summary:San Joaquin,Alameda <br /> LaULong: 37.75781°/-121.55787° Township: 02S <br /> UTM: Zone-10 N4179923 E627033 Range: 04E <br /> Area: 101.0 acres Mapping PrecisionSPECIFIC Section: 17 Qtr:SE <br /> Elevation: 200 It SymbolType:POLYGON Meridian: M <br /> Location:ALONG MENDOTA CANAL,ONE MI NORTH OF MOUNTAIN HOUSE,ALAMEDA COUNTY. <br /> Location Detail:BURROW LOCATIONS:RECENTLY-DISKED,OPEN FIELD;OPEN FIELD NEAR A LATERAL IRRIGATION CANAL;ON THE SLOPE OF CANAL LEVEE; <br /> BETWEEN MILEPOSTS 320 AND 321 ALONG GAS PIPELINE;200-500 EAST&WEST OF PIPELINE CORRIDOR.QUALITY IS FAIR TO GOOD. <br /> Ecological:1989:FIELD RECENTLY FARMED IN WHEAT,IN POORLY-DRAINED ALKALI SOIL.MANY CALIFORNIA GROUND SQUIRREL BURROWS PRESENT. <br /> 1992&1993:SURROUNDED BY GRAZED&UNGRAZED GRASSLAND.2007:RUDERAL HABITAT;WILD OATS,PERENNIAL RYE GRASS,WHEAT. <br /> Threat: 1989:MAIN THREAT IS AGRICULTURE.2007:PROPOSED URBAN DEVELOPMENT. <br /> General: 2 ACTIVE BURROWS(1 W/2 ADULTS)SEP 1989.2 OWLS OBS LEAVING BURROW DURING SPOTLIGHT SURVEY IN MAY,BURROW W/SIGN OBS <br /> 30 SEP 1992.10 BURROWS MONITORED THEN EXCAVATED IN SPRING,BURROW W/OWL NEARBY 16 APR 1993.18 OWLS OBS 16 JAN 2007. <br /> Owner/Manager:PVT,UNKNOWN <br /> Commercial Version--Dated May 01,2010--Biogeographic Data Branch Page 11 <br /> Report Printed on Thursday,July 01,2010 Information Expires 11/01/2010 <br />