About

Ecological Expertise

Since the founding of Colibri in 2010, we have planned, overseen, managed, coordinated, and carried out biological resource investigations throughout California and the northern Gulf of Mexico.

Our scientists are distributed among six locations in California and have a particularly detailed knowledge of flora and fauna of the San Joaquin Valley and its surrounding foothills and mountains.

Some of the special-status species we deal with most often include:

Expertise
1

Plants

  • Bakersfield cactus
  • California jewel flower
  • Hairy Orcutt grass
  • Kern mallow
  • Mariposa pussypaws
  • San Joaquin adobe sunburst
  • San Joaquin woolly threads
  • Succulent owl’s-clover
  • Tree anemone
Colibri Ecological Consulting LLC

Invertebrates

  • Bay checkerspot butterfly
  • Mission blue butterfly
  • San Bruno Elphin butterfly
  • Valley elderberry longhorn beetle
  • Vernal pool fairy shrimp
  • Vernal pool tadpole shrimp
Colibri Ecological Consulting LLC

Amphibians

  • California red-legged frog
  • California tiger salamander
  • Foothill yellow-legged frog
  • Limestone salamander
  • Santa Cruz long-toed salamander
  • Sierra Nevada yellow-legged frog
  • Western spadefoot
  • Yosemite toad
Reptiles

Reptiles

  • Alameda whipsnake
  • Blainville’s horned lizard
  • Blunt-nosed leopard lizard
  • Giant garter snake
  • San Francisco garter snake
  • Western pond turtle
Birds

Birds

  • Bald eagle
  • Burrowing owl
  • Golden eagle
  • Great gray owl
  • Northern goshawk
  • Spotted owl
  • Swainson’s hawk
  • Tricolored blackbird
Mammals

Mammals

  • Buena Vista Lake shrew
  • Fisher
  • Giant kangaroo rat
  • Mohave ground squirrel
  • Salt mouse harvest mouse
  • San Joaquin antelope squirrel
  • San Joaquin kangaroo rat
  • San Joaquin kit fox
Colibri Ecological Consulting LLC

Leadership Team

image-3

LAURA R. DAVIS, M.A. Chief Executive Officer

Laura worked for 20 years in public education in Fresno and Marin counties as a teacher and administrator....

Colibri Ecological Consulting LLC

JEFF N. DAVIS, B.S. Principal and
Chief Operating Officer

Jeff has been a student of natural history for as long as he can remember. He spent much....

Colibri Ecological Consulting LLC

JOSEPH R. MEDLEY, M.S. Senior Scientist and Team Leader

Joe is an ecologist with more than 10 years of professional experience. His interest in wildlife began as a child growing up...

joshua-reece

Joshua S. Reece, Ph.D. Senior Scientist and
Team Leader

Josh is a biologist with more than 20 years of research and field experience. He was raised in Florida and has also...

RYAN R. SLEZAK, M.S.

RYAN R. SLEZAK, M.S. Associate Scientist and Team Leader

Ryan is a biologist with about 15 years of professional experience. Growing up in the forests of Northern…

Full-Time Team Members

New-Project-188

GRAHAM L. BIDDY Associate Scientist

Graham has been working as a wildlife biologist for more than 10 years. He developed his conservationist mindset…

Howard Clark

HOWARD O. CLARK, JR., M.S. Senior Technical Specialist

Howard has more than 20 years of professional wildlife and research experience. He is certified by the Ecological…

KAIA COLESTOCK, M.S.

KAIA L. COLESTOCK, M.S. Senior Scientist

Kaia is an ecologist with nearly 20 years of experience in ecological study, natural resource assessment, and regulatory…

ELIAS A. ELIAS

ELIAS A. ELIAS Senior Scientist

Elias has more than 25 years of professional experience working as a wildlife biologist in California. He conducts nesting…

2

RACHEL L. LOPEZ, M.S. Field Scientist

Rachel had the privilege of serving as a teaching assistant for the same course for three years ...

Joseph Medina (1)

JOSEPH A. MEDINA, B.S. Staff Scientist

Joey grew up in the Central Valley and spent time birding, camping, and exploring in Sierra and Sequoia national forests.
WENDY MURILLO, B.S.

WENDY M. MURILLO, B.S. Field Scientist

Wendy Martinez Murillo was born in Guadalajara, Jalisco in Mexico and moved to California at a young age.…

RUBY R. REBENSDORF, B.S.

RUBY R. REBENSDORF, B.S. Staff Scientist and
Field Lead

Ruby has always enjoyed being outdoors, and growing up in Fresno gave her many opportunities to spend time…

c76cf101-8c54-4f45-970f-5b56a9f32658

Robert T. Seward, B.S Field Scientist

Rob grew up Eugene, Oregon. He served 10 years in the United States Air Force as an aircraft ejection system...

REBECCA

NORMAN “RANDY” SISK, M.S. Senior Technical Specialist

Randy is a wildlife biologist who specializes in herpetology. His interest in herpetology
began as...

REBECCA-S.-WANG,-M.S.

REBECCA S. WANG, M.S. Field Scientist

A New Orleans native, born and raised, Rebecca has always loved and cared deeply for Louisiana’s coastal wetlands, riparian...

CHRIS J. WINCHELL, B.S.

CHRIS J. WINCHELL, B.S. Senior Scientist

Chris Winchell has nearly 20 years of experience working as a plant, wetland, and wildlife ecologist. He has…

Natalie Yorba profile pic

NATALIE YORBA, M.S. Field Scientist

Natalie grew up in San Diego, California.  As a kid she preferred animal documentaries over cartoons...

On-Call Team Members

ROB-K.-BURTON,-PH.D.

ROB K. BURTON, PH.D. Senior Scientist

Rob has worked with wildlife for over 30 years. His interests have included a broad diversity of species such as California...

PHILLIP J. CAPITOLO, B.S.

PHILLIP J. CAPITOLO, B.S. Senior Scientist

Phil is a biologist with more than 20 years of experience studying a variety of North American bird taxa,….

SCOTT FRAZER, B.S.

SCOTT E. FRAZER, B.S. Senior Scientist

Scott has nearly 40 years of experience as a biologist and natural resource manager. He completed a Bachelor…

PETER A. GAEDE, B.S.

PETER A. GAEDE, B.S. Senior Scientist

Peter is an ecologist with more than 15 years of experience. He has conducted fieldwork for consulting and research…

ALEX S. JONES, M.S.

ALEX S. JONES, M.S. Senior Scientist

Alex is an ecologist and educator with more than 15 years of experience. He completed a B.A. at UC Santa Cruz and an M.S. at...

DAVID B. LEWIS, B.A.

DAVID B. LEWIS, B.A. Senior Scientist

Dave has more than 40 years of experience in the biological sciences, including 35 years of field experience…

MICHAEL W. PARKER, M.S.

MICHAEL W. PARKER, M.S. Senior Scientist

Mike has over 25 years of natural resource management, research, and consulting experience throughout the western U.S. with…

KRISTY-L.-USCHYK,-B.S.

KRISTY L. USCHYK, B.S. Senior Scientist

Kristy has worked as a wildlife biologist for over 20 years. She has worked on a wide array of projects including coastal…

We proudly support the following community organizations:

Colibri Ecological Consulting LLC