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Crocodiles and Alligators by Tim Patton
Saturday, November 9, 2019, 10:00am – 11:30am
The crocodilians represent an ancient and fascinating group that is remarkably different from the other reptiles. In this presentation, I'll start with an overview of the family Crocodylia and the place of the alligators. This will include an overview of the major groups of crocodilians, including the American Alligator, and their distributions. From there, I will focus on the alligator. We will look at their biology, including some basic physiology (how they work) and reproduction, as well as their ecology, including habitat, and what they do in their environment. Lastly, we will discuss their conservation in our region, and some of the specific alligator research I have done.

Tim Patton is a native of Arkansas and received a BS in Fisheries and Wildlife Science from Arkansas Tech University. He also has an MS and PhD in Zoology and Physiology from the University of Wyoming. After graduate school, Tim worked as a research associate for the Wyoming Cooperative Fish and Wildlife Research Unit, with an emphasis on native (in Wyoming) fish, amphibians, and reptiles. Dr. Patton has been a professor at Southeastern Oklahoma State University since 1998, where he teaches numerous classes in Fisheries and Wildlife Science. His recent research has focused on: fish-habitat relations in rivers of Oklahoma and Texas, invasive fish issues in rivers of New Mexico, sedimentation issues in Lake Texoma, freshwater turtle ecology and conservation in Oklahoma and alligator ecology and conservation in Oklahoma.
Hagerman National Wildlife Refuge
6465 Refuge Rd
Sherman, TX 75092
view map
Friends of Hagerman
(903) 786-2826
Tram Tours: Come See the Geese!

Guided tours are offered at 2 p.m. on Saturdays and Sundays, weather permitting. Enjoy a 60 -  90 minute tour along Wildlife Drive at the Refuge. Learn about the history of the displaced town of Hagerman while watching for wildlife.  Lots of stops for bird-watching and photography.  Free (donations accepted). Seating is limited: please call (903)786-2826 between 9:00am and 4:00pm, Mon-Sat, for reservations.  Standbys are accepted if space permits.  Tours are recommended for age 6 - adult.


Early Bird Guided Walk - Second Saturdays

Master Naturalist Jack Chiles will lead our early bird walk, weather permitting. Bring binoculars or borrow ours. Meet at 8:00 AM at the Visitor Center, return in time for the Second Saturday program.  Free and open to the public.

Calling All Gardeners: Volunteers Needed to help with Butterfly Garden

 Love to work in the garden?  Come and help us add plants, weed and mulch our beautiful butterfly garden. Join our team that is on call for Wednesday morning gardening.  Provide own tools and gloves. Minimum age 18, or 16 if accompanied by parent/volunteer.  Garden volunteers get first dibs on thinned plants as well as access to seeds and cuttings for propagation.  Email for dates, times and details:

Outdoor Crew

 Do you enjoy working outside, mowing, sprucing up hiking trails, trimming and removing brush and general cleanup? Join the Outdoor Crew at Hagerman National Wildlife Refuge. The Outdoor Crew meets on the First Tuesday and Fourth Saturday of every month. Please email for details and to join our team. Scouts welcome!

Hagerman Youth

 Check out nature activities for youth at Hagerman Youth.

Shorebird Migration at Hagerman NWR

Mid-March - mid-May and mid-August - late October are times to view the Central Flyway shorebird migration at the Refuge.  Each spring many thousands of shorebirds pass through,  on their way to breeding grounds in the northern US, Canada or the high Arctic.  They are back again in the fall, on their way to the tropics or even South America, to spend the winter.  The Refuge offers wetlands for resting and re-fueling.  Shorebirds can be a challenge to identify; literature and field guides are available at the Visitor Center.

Geese At Hagerman NWR

November - February - Trips to Hagerman NWR to see the huge flock of wintering geese are an annual holiday tradition for many visitors. Please stop by the Visitor Center for information and visitor services such as maps,  free wildlife guides and binoculars-for-loan.

Seasons of Wildlife at Hagerman NWR

 Click for more on the seasons of wildlife at the Refuge, 

Slide Show Photo Credits

Photos are selected entries from the 2017 HNWR Nature Photography Contest

Liftoff, by Alan Daniel

Sunrise Song, by Jeff Gladden

Encounter with Wildlife, by Carl Hill

Showing My Colors, by Mike Sweatt

Friends of Hagerman
6465 Refuge Road
Sherman, TX 75092
(903) 786-2826