Client Page

Project work has been successfully completed for the following agencies and businesses:


Bureau of Land Management (BLM) El Centro, Riverside; Imperial Irrigation District (IID); City of Imperial, County of Imperial (currently on-call biologist for County of Imperial), City of Brawley,  City of El Centro, Caltrans, City of Indio, Caltrans.


Granite Construction, Superior Redimix, ManHole Adjusting, Inc, ValRock, McMillin Homes, All American Aggregates, Pulte Homes, Pyramid Construction, Gibson and Schaeffer/ All American Aggregates,

Subcontracted for ASM Associates, Ultrasystems, Evans and Associates,  AECOM, RECON, Rincon, and Edaw.

Barrett’s Biological Surveys has worked closely with agencies such as United States Fish and Wildlife Service (USFWS), California Department of Fish and Wildlife (CDFW)and Imperial County Planning and Development Department in preparing technical reports. BBS has voluntarily participated in federal/state sponsored local surveys for burrowing owls under the guidance of Bob Wilkerson (2006-7); mountain plover, and long billed curlew (2010-12), under the guidance of Kathy Molina.  Working with USFWS and CDFW, they helped develop a proposed burrowing owl survey for Imperial County. Marie Barrett was the volunteer coordinator of the Salton Sea International Bird Festival for seven years. BBS has surveyed for bats in cooperation of BLM, El Centro, CA under the guidance of Pat Brown (2013-14).

July 7, 2017
On behalf of Singh Group Inc., I want to thank you for your survey and report regarding bird nesting  at the BLM Parker parks and campgrounds. Your promptness and professionalism along with your report made it very smooth for us to proceed with our tree trimming work. Most importantly, our client BLM approved your work.
Thank you once again.
Adolf B.K.Singh
Singh Group Inc.