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High Plains Ecoregion
Wildlife Management Plan for Ochiltree County, Texas
Ochiltree County spans the boundary between the High Plains and Southwestern Tablelands, with 40 documented species adapted to its flat and wind-swept landscape.
Intelligence Snapshot
Regulatory Complexity
Ochiltree County's conservation obligations require careful attention to how management practices affect listed species habitat. Critical habitat has been designated for 3 species within county boundaries. Federal review may be triggered by land use changes in designated areas. A properly calibrated plan accounts for these constraints. A generic plan does not.
Ochiltree County Ecological Profile
Ochiltree County's 918 square miles of short-grass prairie and playa lake systems carry an environmental legacy: 23 orphan wells on the Railroad Commission's plugging priority list alongside active ecological management. Today, much of the region has been converted to irrigated cotton, grain sorghum, and wheat, with remaining native rangeland fragmented by center-pivot irrigation circles and wind energy development. Playa lakes are the defining wildlife feature. These shallow, seasonal wetlands provide the only reliable wildlife water and waterfowl habitat across millions of acres of short-grass prairie and irrigated cropland.
Wildlife management on the High Plains centers on playa lake conservation, CRP grassland management, and rangeland restoration. Playa lakes are the primary recharge mechanism for the Ogallala Aquifer and the single most important wildlife habitat feature in the region. Protecting playas from sedimentation caused by tillage on surrounding cropland, maintaining native grass buffers around playa margins, and managing water levels through careful grazing are essential practices. On CRP contracts converting to wildlife management valuation, landowners should maintain the established grass cover, introduce prescribed fire or patch burning to create structural diversity, and install wildlife-friendly fencing that allows pronghorn passage. Mesquite and prickly pear encroachment on native rangeland requires periodic mechanical treatment followed by targeted herbicide application.
Transitional Ecoregion
Ochiltree County spans the boundary between the High Plains and Southwestern Tablelands. Species assemblages, soil types, and appropriate management intensities differ between these regions. A property in the High Plains portion of the county will require different practices than one in the Southwestern Tablelands zone.
Soil Conditions
Soils are deep, calcareous loams and clay loams of the Pullman, Sherm, and Amarillo series, formed in Ogallala Formation deposits and capable of high agricultural productivity under irrigation.
Fire Ecology
The High Plains historically burned at 5 to 10 year intervals, driven by lightning and maintained by vast, ungrazed grasslands. Prescribed fire remains valuable for managing CRP stands and preventing mesquite encroachment, though wind and low humidity require careful burn planning.
Spans 2 ecoregions: High Plains, Southwestern Tablelands
The lesser prairie chicken, listed as threatened under the Endangered Species Act, is the flagship species of the High Plains. This grouse depends on native shinnery oak and mid-grass prairie for nesting and brood-rearing, and its populations have declined sharply due to habitat conversion and fragmentation from wind energy development. Pronghorn, the fastest land mammal in North America, requires large, open landscapes with minimal fencing. Mountain plover nests on bare, disturbed ground in short-grass prairie and fallow fields. Swift fox, burrowing owl, and ferruginous hawk round out a community of grassland specialists that benefit from maintaining large, connected tracts of native rangeland.
Ochiltree County Species of Conservation Concern
The 40 species documented in Ochiltree County reflect the High Plains's wind exposure and declining Ogallala Aquifer levels. The species present are specifically adapted to these conditions and represent the ecological baseline for the region. The county carries significant conservation obligations: 1 federally endangered species, 2 federally threatened, and USFWS critical habitat designations for 3 species. Management activities on private land must be designed to avoid incidental take.
Primary Management Targets
lesser prairie-chicken, pronghorn, mule deer
Listed Species
Winters along the Texas coast at Aransas NWR and surrounding marshes. Grain field management and wetland water levels in coastal counties affect foraging habitat. Disturbance within 1,000 feet of roosting sites is regulated.
Inhabits dense emergent marsh vegetation. Extremely secretive and declining. Wetland drainage, mowing of marsh vegetation during nesting season, and altered hydrology are primary threats. Marsh management must maintain dense low vegetation.
Western distinct population segment is threatened. Requires large patches of mature riparian woodland (cottonwood, willow) with dense understory. Clearing riparian corridors wider than 300 feet may trigger consultation in designated critical habitat.
Inhabits dense emergent marsh vegetation. Extremely secretive and declining. Wetland drainage, mowing of marsh vegetation during nesting season, and altered hydrology are primary threats. Marsh management must maintain dense low vegetation.
Depends on native shinnery oak and mid-grass prairie for nesting and brood-rearing in the western Rolling Plains and High Plains. Conversion of native rangeland, wind energy infrastructure, and fence collisions are primary threats. Wildlife-friendly fencing is recommended in occupied range.
Winters along the Texas coast at Aransas NWR and surrounding marshes. Grain field management and wetland water levels in coastal counties affect foraging habitat. Disturbance within 1,000 feet of roosting sites is regulated.
Depends on harvester ant colonies for food. Fire ant suppression and native grassland restoration directly benefit this species. Listed as state threatened.
Source: Texas Parks & Wildlife Department RTEST Database; U.S. Fish & Wildlife Service Critical Habitat Designations
High Plains Wildlife Management Standards
Management in Ochiltree County revolves around playa lake conservation, CRP grassland structure, and wildlife fencing that allows pronghorn passage. The High Plains's large-acreage requirements reflect the scale of the landscape: 30 to 50 minimum acres, 10% brush management, and annual census counts under 34 TAC Section 9.2002. Primary targets are lesser prairie-chicken, pronghorn, and mule deer. Management prescriptions emphasize maintaining large, connected tracts of native rangeland with minimal fencing.
These are the intensity thresholds your plan must meet for the High Plains ecoregion. Your county appraisal district will verify compliance against these minimums. A plan that does not address them risks denial of your wildlife management valuation. For a complete overview of the seven management pillars, see the management pillars guide.
This is a hard minimum. The appraisal district will verify that your plan prescribes brush management on at least this proportion of your acreage annually.
Food plots must provide nutritional supplementation for target species. The minimum size and density are set by ecoregion to reflect carrying capacity.
Feeder placement and protein content are auditable. The aflatoxin threshold (20 ppb) is a compliance requirement, not a suggestion.
Fire ant suppression directly supports native harvester ant populations, the primary food source for Texas horned lizard and other ground-foraging species.
Brown-headed cowbirds are brood parasites that reduce nesting success of songbirds. The minimum applies to properties where cowbird trapping is selected as a management activity.
The burn rotation percentage applies over the full plan period. Properties that cannot burn due to WUI constraints must document the limitation and substitute equivalent mechanical treatment.
Nest box density is based on territory size of target cavity-nesting species. Boxes must be monitored and maintained annually.
Source: TPWD 34 TAC Section 9.2002, Comprehensive Wildlife Management Planning Guidelines
Water Resources
2 Groundwater Conservation Districts regulate water resources in the county, with permitting requirements for new wells and production limits that affect agricultural and wildlife management water sources.
Infrastructure
Ochiltree County has substantial oil and gas infrastructure: 5,037 documented wells across 18 categories and 5,588 pipeline segments recorded by the Railroad Commission. 23 orphan wells are on the Railroad Commission's plugging priority list.
5,037 wells and 1 endangered species. In Ochiltree County, industry and ecology share the same ground.
Build your Ochiltree County wildlife management plan.
2 ecoregions. 40 documented species. Ochiltree County's ecological complexity means the plan has to be specific to your property's landscape position. Calibrated to High Plains standards.
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