In an effort to ensure continuity of operations of the Oklahoma Ecological Services Field Office, please submit ALL project review requests in electronic format (email) until further notice. All project requests located within the Oklahoma Office area of responsibility should be sent to OKProjectReview@fws.gov. Other general correspondence for the Oklahoma Ecological Services Field Office should be sent electronically to Susan Minnick.

About Us

This is the web site of the Oklahoma Ecological Services Field Office, located in Tulsa, Oklahoma. Some of our programs include Endangered Species and Conservation Planning Assistance, Environmental Contaminants, and Partners for Fish and Wildlife.

Our Organization

A rocky shoreline of a river. The water is calm. Mist and green branches line the river.
The Ecological Services Program works to restore and protect healthy populations of fish, wildlife, and plants and the environments upon which they depend. Using the best available science, we work with federal, state, Tribal, local, and non-profit stakeholders, as well as private land owners, to...

Our Species

The Arkansas River shiner (ARS) is a small, streamlined minnow with a small, dorsally flattened head, rounded snout, and subterminal mouth. The ARS is silver in appearance with a dark blotch at the base of the dorsal (top) fin. Adults attain a maximum length of about 2 inches (Miller and Robison...
FWS Focus
Ouachita rock pocketbook

This species has undergone a name change. Find current information at the Ouachita rock pocketbook entry. 

Ozark big-eared bats in a cave.

Corynorhinus (=Plecotus) townsendii is a medium-sized bat with forearms measuring 39 to 48 millimeters (mm) long and weighing 7 to 12 grams. Total body length is 98 mm, the tail is 46 mm, and the hind foot is 11 mm long. This bat's long ears (over 2.5 centimeters) and facial glands on either...

FWS Focus

Location and Contact Information