Barred Owl Observations [ds8]

File Geodatabase Feature Class

Open this dataset in BIOS

Tags
Marin, biota, Modoc, Shasta, Siskiyou, El Dorado, nest, hybrid, Trinity, Cascade Mountains, barred owl, California, breeding, environment, Strix varia, northern spotted owl, California spotted owl, owl, Del Norte, territory, Yuba, Nevada, Strix occidentalis caurina, Sonoma, Tulare, Mariposa, north coast, Colusa, raptor, Lassen, Plumas, Butte, Mendocino, Napa, Placer, site, bird, Tehama, Sierra Nevada, Sierra, Humboldt, Strix occidentalis occidentalis


Summary

The Database was designed to track barred owl (BDOW, Strix varia), Strix hybrid (sparred owls, SBOH), and unknown Strix (Strix sp) detections in California. It can be used as a research, monitoring, and management tool to determine the growth of the barred owl range and where barred owls have displaced spotted owls or have paired with spotted owls. In the past, CDFW documented barred owl activity centers; however, CDFW will not be updating these activity centers or creating new ones for the time being. CDFW is recording impacted spotted owl activity centers as specified by the data contributor. Historic barred owl activity center information can be found in the Comments field.

Description

Using predominantly incidental detections, these data define the current range of Barred and hybrid Barred/Spotted Owls in California. The current range covers 27 counties and includes the coastal mountains of northern California from Marin County north to the Oregon border, across the mountainous northern part of the state, and south in the Sierra Nevada's. The first observations were made in 1978. There also are three observation records from just across the border in Oregon. The database was established by Gordon Gould with California Department of Fish and Wildlife (CDFW), formerly California Department of Fish and Game. The majority of these observations have come from state, federal, and private researchers, biologists, and foresters surveying for Spotted Owls. A few early observations were made by chance. Many of the records were added thanks to the compilation effort in 2006 by Brian Woodbridge, USFWS, Yreka, CA. The survey method used for Spotted Owls also works well for Barred Owls (see the 1992 and 2011 protocol documentation, USFWS "Protocol for surveying proposed management activities that may impact northern spotted owls" available online at http://www.fws.gov/wafwo/species/Fact%20sheets/NSO%20Survey%20Protocols%201992.pdf and https://www.fws.gov/oregonfwo/species/Data/NorthernSpottedOwl/Documents/2012RevisedNSOprotocol.2.15.12.pdf , respectively, last accessed on 4/2/2014). Most Barred Owl observations reported here have been made using methods similar to those presented in the Spotted Owl survey protocols.

Credits

California Department of Fish and Wildlife

Use limitations

This dataset is made available with the understanding that it shall be used exclusively by the person who requested the dataset. Do not redistribute this dataset. Use is to be made on an as-needed basis, where there is a need to know the owl's status in a particular area. Use of the database also may be made by researchers, planners, and government agencies for large-scale research, management, planning, and regulatory purposes. Users should contact recent data contributors prior to authoring scientific literature with the intent to publish. When this dataset is used, please use the following citation. "Barred Owl Observations dataset. YEAR. [Internet]. California Department of Fish and Wildlife [VERSION DATE]. where YEAR is the year that the data was accessed, and VERSION DATE can be located under Citation and Publication Date in the metadata below."

Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data.

Extent

West -124.404428 East -118.304300
North 42.069257 South 35.665085

Scale Range
Maximum (zoomed in) 1:5,000
Minimum (zoomed out) 1:150,000,000

ArcGIS Metadata

Topics and Keywords

Themes or categories of the resource biota


* Content type Downloadable Data


Place keywords Butte, Calaveras, Colusa, Del Norte, El Dorado, Glenn, Humboldt, Lake, Lassen, Marin, Mariposa, Mendocino, Modoc, Napa, Nevada, Placer, Plumas, Shasta, Sierra, Siskiyou, Sonoma, Tehama, Trinity, Tulare, Yuba, Cascade Mountains, Sierra Nevada, north coast

Theme keywords biota, environment

Thesaurus
Title ISO 19115 Topic Category




Theme keywords nest, hybrid, barred owl, breeding, Strix varia, northern spotted owl, California spotted owl, owl, territory, Strix occidentalis caurina, raptor, site, bird, Strix occidentalis occidentalis

Citation

Title Barred Owl Observations [ds8]
Publication date 2023-04-2800:00:00


Presentation formats * digital map


Citation Contacts

Responsible party
Organization's name California Department of Fish and Wildlife
Contact's role originator


Responsible party
Individual's name Kate Keiser
Organization's name California Department of Fish and Wildlife, Biogeographic Data Branch
Contact's position Spotted Owl Observations Database Manager
Contact's role point of contact


Contact information
Phone
Voice (916) 445-5006
Fax (916) 324-0475

Address
Type postal
Delivery point California Department of Fish and Wildlife
Delivery point 1416 9th Street, Suite 1266
City Sacramento
Administrative area CA
Postal code 95814
Country US
e-mail address owlobs@wildlife.ca.gov



Resource Details

Dataset languages English(UNITED STATES)
Dataset character set utf8 - 8 bit UCS Transfer Format


Status under development
Spatial representation type * vector


* Processing environment Microsoft Windows 10 Version 10.0 (Build 19045) ; Esri ArcGIS 13.1.0.41833


Credits
California Department of Fish and Wildlife
ArcGIS item properties
* Name ds8
* Location file://\\geodata.\bios\WorkArea\BIOSOnline\Refresh\TODOData\BIOSOnlineData.gdb
* Access protocol Local Area Network

Extents

Extent
Description
ground condition
Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -124.404428
* East longitude -118.304300
* North latitude 42.069257
* South latitude 35.665085
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -365527.870900
* East longitude 140641.544000
* South latitude -253529.093600
* North latitude 450106.240200
* Extent contains the resource Yes

Resource Points of Contact

Point of contact
Individual's name Kate Keiser
Organization's name California Department of Fish and Wildlife, Biogeographic Data Branch
Contact's position Spotted Owl Observations Database Manager
Contact's role point of contact


Contact information
Phone
Voice (916) 445-5006
Fax (916) 324-0475

Address
Type postal
Delivery point California Department of Fish and Wildlife
Delivery point 1416 9th Street, Suite 1266
City Sacramento
Administrative area CA
Postal code 95814
Country US
e-mail address owlobs@wildlife.ca.gov



Resource Maintenance

Resource maintenance
Update frequency quarterly


Resource Constraints

Constraints
Limitations of use

This dataset is made available with the understanding that it shall be used exclusively by the person who requested the dataset. Do not redistribute this dataset. Use is to be made on an as-needed basis, where there is a need to know the owl's status in a particular area. Use of the database also may be made by researchers, planners, and government agencies for large-scale research, management, planning, and regulatory purposes. Users should contact recent data contributors prior to authoring scientific literature with the intent to publish. When this dataset is used, please use the following citation. "Barred Owl Observations dataset. YEAR. [Internet]. California Department of Fish and Wildlife [VERSION DATE]. where YEAR is the year that the data was accessed, and VERSION DATE can be located under Citation and Publication Date in the metadata below."

Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data.


Security constraints
Classification restricted


Limitations of use
For use by California Department of Fish and Wildlife (CDFW) staff and California Natural Diversity Database (CNDDB) subscribers. Due to the sensitive status of the species in this data, CDFW policy restricts its access.

Spatial Reference

ArcGIS coordinate system
* Type Projected
* Geographic coordinate reference GCS_North_American_1983
* Projection NAD_1983_California_Teale_Albers
* Coordinate reference details
Projected coordinate system
Well-known identifier 3310
X origin -16909700
Y origin -8597000
XY scale 10000
Z origin -100000
Z scale 10000
M origin -100000
M scale 10000
XY tolerance 0.001
Z tolerance 0.001
M tolerance 0.001
High precision true
Latest well-known identifier 3310
Well-known text PROJCS["NAD_1983_California_Teale_Albers",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",-4000000.0],PARAMETER["Central_Meridian",-120.0],PARAMETER["Standard_Parallel_1",34.0],PARAMETER["Standard_Parallel_2",40.5],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3310]]

Reference system identifier
* Value 3310
* Codespace EPSG
* Version 6.8(9.2.0)


Spatial Data Properties

Vector
* Level of topology for this dataset geometry only


Geometric objects
Feature class name ds8
* Object type point
* Object count 0



ArcGIS Feature Class Properties
Feature class name ds8
* Feature type Simple
* Geometry type Point
* Has topology FALSE
* Feature count 0
* Spatial index TRUE
* Linear referencing FALSE



Geoprocessing history

Process
Date 2024-01-2912:13:21
Tool location c:\program files\arcgis\pro\Resources\ArcToolbox\toolboxes\Conversion Tools.tbx\ExportFeatures
Command issued
Include in lineage when exporting metadata No


Process
Date 2024-01-2912:13:38
Tool location c:\program files\arcgis\pro\Resources\ArcToolbox\toolboxes\Data Management Tools.tbx\Project
Command issued
Include in lineage when exporting metadata No


Process
Date 2024-01-2912:14:03
Tool location c:\program files\arcgis\pro\Resources\ArcToolbox\toolboxes\Data Management Tools.tbx\Rename
Command issued
Include in lineage when exporting metadata No


Distribution

Distributor
Contact information
Individual's name Kate Whitney Keiser
Organization's name California Department of Fish and Wildlife, Biogeographic Data Branch
Contact's role point of contact


Contact information
Phone
Voice (916) 445-5006
Fax (916) 324-0475

Address
Type postal
Delivery point California Department of Fish and Wildlife
Delivery point 1416 9th Street, Suite 1266
City Sacramento
Administrative area CA
Postal code 95814
Country US
e-mail address owlobs@wildlife.ca.gov





Distribution format
* Name File Geodatabase Feature Class


Transfer options
Online source
Location https://www.wildlife.ca.gov/Data/BIOS
Function performed information

Fields

Details for object ds8
* Type Feature Class
* Row count 0
Definition
Barred Owl Observations [ds8]


Field OBJECTID
* Alias OBJECTID
* Data type OID
* Width 4
* Precision 0
* Scale 0
Field description
Internal feature number.
Description source
Esri
Description of values
Sequential unique whole numbers that are automatically generated.




Field Shape
* Alias Shape
* Data type Geometry
* Width 0
* Precision 0
* Scale 0
Field description
Feature geometry.
Description source
Esri
Description of values
Coordinates defining the features.




Field OBSERVER
* Alias OBSERVER
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
Persons and/or organization that reported the observation. Individuals should be named by last name only.


Field DATEOBS
* Alias DATEOBS
* Data type String
* Width 10
* Precision 0
* Scale 0
Field description
Dates are presented as YYYY-MM-DD. A date of YYYY indicates that no specific observation date was provided or that this represents the highest occupancy status determined for this site in the year given. A date of YYYY-MM indicates that only the month and year were provided. A date of YYYY-MM-01 may also mean that only the month and year were provided.


Field TIMEOBS
* Alias TIMEOBS
* Data type String
* Width 9
* Precision 0
* Scale 0
Field description
Time, or span of time, when the observation was made.
List of values
Value 1200
Description Daytime detection


Value 2400
Description Nighttime detection


Value <null>
Description Unknown




Field STRIX_TOT
* Alias STRIX_NUM
* Data type SmallInteger
* Width 2
* Precision 0
* Scale 0
Field description
Total number of adult, subadult, and young Strix observed.


Field BDOW_NUMAD
* Alias BDOW_NUMAD
* Data type SmallInteger
* Width 2
* Precision 0
* Scale 0
Field description
Number of adult or subadult barred owls.
List of values
Value 0-4
Description No more than 4 owls should be included in a single observation. A value of 0 indicates the species was not found or reported. It does not indicate that the species was specifically surveyed for.




Field BDOW_AGESEX
* Alias BDOW_AGESEX
* Data type String
* Width 5
* Precision 0
* Scale 0
Field description
Age and sex of barred owls.
List of values
Value A
Description Adult


Value S
Description Subadult


Value U
Description Unknown Age


Value M
Description Male


Value F
Description Female


Value U
Description Unknown Sex




Field SPOW_NUMAD
* Alias SPOW_NUMAD
* Data type SmallInteger
* Width 2
* Precision 0
* Scale 0
Field description
Number of adult or subadult spotted owls.
List of values
Value 1-4
Description No more than 4 owls should be included in a single observation. A value of 0 indicates the species was not found or reported. It does not indicate that the species was specifically surveyed for.




Field SPOW_AGESEX
* Alias SPOW_AGESEX
* Data type String
* Width 5
* Precision 0
* Scale 0
Field description
Age and sex of spotted owls.
List of values
Value A
Description Adult


Value S
Description Subadult


Value U
Description Unknown Age


Value M
Description Male


Value F
Description Female


Value U
Description Unknown Sex




Field HYB_NUMAD
* Alias HYB_NUMAD
* Data type SmallInteger
* Width 2
* Precision 0
* Scale 0
Field description
Number of adult or subadult barred owl/spotted owl hybrids.
List of values
Value 1-4
Description No more than 4 owls should be included in a single observation. A value of 0 indicates the species was not found or reported. It does not indicate that the species was specifically surveyed for.




Field HYB_AGESEX
* Alias HYB_AGESEX
* Data type String
* Width 5
* Precision 0
* Scale 0
Field description
Age and sex of barred owl/spotted owl hybrids.
List of values
Value A
Description Adult


Value S
Description Subadult


Value U
Description Unknown Age


Value M
Description Male


Value F
Description Female


Value U
Description Unknown Sex




Field UNK_NUMAD
* Alias UNK_NUMAD
* Data type SmallInteger
* Width 2
* Precision 0
* Scale 0
Field description
Number of adult or subadult owls that could only be identified as Strix.
List of values
Value 1-4
Description No more than 4 owls should be included in a single observation. A value of 0 indicates the species was not found or reported. It does not indicate that the species was specifically surveyed for.




Field UNK_AGESEX
* Alias UNK_AGESEX
* Data type String
* Width 5
* Precision 0
* Scale 0
Field description
Age and sex of unknown strix.
List of values
Value A
Description Adult


Value S
Description Subadult


Value U
Description Unknown Age


Value M
Description Male


Value F
Description Female


Value U
Description Unknown Sex




Field PAIR
* Alias PAIR
* Data type String
* Width 1
* Precision 0
* Scale 0
Field description
Query: "Was a pair observed on this visit?".
List of values
Value Y
Description Yes


Value <null>
Description Unknown/not specified




Field NEST
* Alias NEST
* Data type String
* Width 1
* Precision 0
* Scale 0
Field description
Documents if a nest was found during this observation.
List of values
Value Y
Description Yes


Value N
Description No


Value <null>
Description Unknown; nest search not conducted




Field NUMYOUNG
* Alias NUMYOUNG
* Data type SmallInteger
* Width 2
* Precision 0
* Scale 0
Field description
Number of individuals counted during this observation that were born during the year of the observation.


Field SURVEYTYPE
* Alias SURVEYTYPE
* Data type String
* Width 20
* Precision 0
* Scale 0
Field description
Type of survey being conducted when obervation was made.
List of values
Value BDOW
Description Barred owl survey


Value Split
Description Barred owl and spotted owl survey


Value SPOW
Description Spotted owl survey


Value MAMU
Description Marbled murrelet survey


Value <null>
Description Unknown/not specified




Field ASSOC_SPOW
* Alias ASSOC_SPOW
* Data type String
* Width 7
* Precision 0
* Scale 0
Field description
Nearest or impacted spotted owl activity center (masterowl number) as specified by the contributor. Information on the impact can been found in the COMMENTS field if available. Spatial analysis is recommended for a complete list of nearby spotted owl activity centers.


Field LONDD_83
* Alias LONDD_83
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
Longitude (decimal degrees in NAD83) of observation.


Field LATDD_83
* Alias LATDD_83
* Data type Double
* Width 8
* Precision 0
* Scale 0
Field description
Latitude (decimal degrees in NAD83) of observation.


Field COORDSRC
* Alias COORDSRC
* Data type String
* Width 24
* Precision 0
* Scale 0
Field description
Source of coordinates for the observation.
List of values
Value Contributor
Description Location based on map or coordinates provided by contributor


Value Quarter-section centroid
Description Location based on PLSS legal description


Value Half-section centroid
Description Location based on PLSS legal description


Value Section centroid
Description Location based on PLSS legal description


Value SPOW activity center
Description Exact location unknown; detection occurred in the vicinity of a spotted owl activity center so the SPOW activity center coordinates were used


Value Unknown
Description Historic data; coordinate source unknown




Field DOCID
* Alias DOCID
* Data type String
* Width 50
* Precision 0
* Scale 0
Field description
The data contributor's document ID number for the source observation sheet for this observation.


Field COMMENTS
* Alias COMMENTS
* Data type String
* Width 255
* Precision 0
* Scale 0
Field description
General comments about this observation.


Field MTRS
* Alias MTRS
* Data type String
* Width 16
* Precision 0
* Scale 0
Field description
Approximate meridian, township, range, and section of the observation.


Field COUNTY
* Alias COUNTY
* Data type String
* Width 15
* Precision 0
* Scale 0
Field description
County in which the observation is located




Metadata Details

Metadata language English(UNITED STATES)
Metadata character set utf8 - 8 bit UCS Transfer Format


Scope of the data described by the metadata dataset
Scope name * dataset


* Last update 2024-01-29


ArcGIS metadata properties
Metadata format ArcGIS1.0
Metadata style FGDC CSDGM Metadata
Standard or profile used to edit metadata FGDC


Created in ArcGIS for the item 2024-01-2912:13:31
Last modified in ArcGIS for the item 2024-01-2912:13:18


Automatic updates
Have been performed Yes
Last update 2024-01-2912:13:18


Metadata Contacts

Metadata contact
Individual's name Kate Keiser
Organization's name California Department of Fish and Wildlife, Biogeographic Data Branch
Contact's position Spotted Owl Observations Database Manager
Contact's role point of contact


Contact information
Phone
Voice (916) 445-5006
Fax (916) 324-0475

Address
Type postal
Delivery point California Department of Fish and Wildlife
Delivery point 1416 9th Street, Suite 1266
City Sacramento
Administrative area CA
Postal code 95814
Country US
e-mail address owlobs@wildlife.ca.gov



Metadata Maintenance

Maintenance
Update frequency quarterly