Tim Fitzharris / Bald Cypress (Taxodium distichum) swamp, Sam Houston Jones State Park, Louisiana

Will Watson / Houston at night with the Texas Medical Center in the background, Texas, USA. March 2012.

John Abbott / Bee Like Robberfly (Laphria saffrana) feeding on a Burrowing Bug (Cydnidae), Big Creek Scenic Area, Sam Houston National Forest, Texas, USA

John Abbott / Gray petaltail dragonfly (Tachopteryx thoreyi) female resting on bark, Sam Houston National Forest, Texas, USA, June

John Abbott / Orange sulphur butterfly (Colias eurytheme) on flower, Sam Houston National Forest, Texas, USA, April

John Abbott / Oklahoma Clubtail dragonfly (Gomphus oklahomensis) male at rest, Sam Houston National Forest, Texas, USA, April

John Abbott / Feather-legged fly (Trichopoda lanipes) female resting on flower, Sam Houston National Forest, Texas, USA, June

David Welling / Male Arrowhead spiketail (Cordulegaster obliqua) hovering in flight, Sam Houston National Forest, San Jacinto County, Texas, USA

David Welling / Male Arrowhead spiketail (Cordulegaster obliqua) resting on plant, Sam Houston National Forest, San Jacinto County, Texas, USA

Graham Eaton / Great white egret (Casmerodius / Ardea alba) close-up of head, Houston, Texas, October

Graham Eaton / Great white egret (Casmerodius / Ardea alba) close-up of legs, Houston, Texas, October

Graham Eaton / Egyptian geese (Alopochen aegyptiacus) feeding on golf course in morning mist, Houston, Texas, October 2008

Graham Eaton / Great Blue heron (Ardea herodias) standing in shallow water, Houston, Texas, October

Graham Eaton / Egyptian geese (Alopochen aegyptiacus) flying in mist over a lake, Houston, Texas, October 2008

Graham Eaton / Coypu / Nutria (Myocastor coypus) swimming, Houston, Texas, October 2008