Records of Burrowing Owls in Imperial Valley, California from the Institute for Bird Populations' 2006-2007 Survey. Data provided by Bob Wilkerson and described in the papers below.

WILKERSON, R.L., AND R.B. SIEGEL. 2011. Distribution and abundance of Western burrowing owls (ATHENE CUNICULARIA HYPUGAEA) in southeastern California. The Southwestern Naturalist 56(3):378–384. 
WILKERSON, R. L., AND R. B. SIEGEL. 2010. Assessing changes in the distribution and abundance of burrowing owls in California, 1993–2007. Bird Populations 10:1–36. 


Data Dictionary: 


Field: Year 
Year the block was surveyed. 


Field: Date 
Indicates the last date the block was visited by field observers. 


Field: Adults 
Number of adults observed at the breeding location. 


Field: Pairs (Estimated) 
An estimate of the number of pairs observed at a breeding location. 


Field: Juveniles 
Number of young observed at a breeding location. 


Field: Easting 
UTM NAD 27 easting for the breeding location. 


Field: Northing 
UTM NAD 27 northing for the breeding location. 


Field: Comments 
General comments pertaining to the breeding location or BUOW present location.


Field: Note 
General notes regarding BUOW detection at this location.


Field: Habitat 
General habitat type present within 100-m radius of the breeding location as classified by field observer during survey visit.


Field: Habitat Description
Description for "Habitat Type" field when classified as Other. 


Field: Habitat 2 
Aggregated habitat types grouped for analysis.


Field: Agriculture Type
Indicates type of agriculture present at breeding location.


Field: Squirrels 
Yes=ground squirrels present within 100-m radius of breeding location. 
No=ground squirrels not detected within 100-m radius of breeding location.


Field: Detection Type
Survey indicates BUOW detected during field survey as part of statewide survey effort. Incidental indicates data added to database from source other than statewide survey effort.