California Least Tern with fledgling-Sternula antillarum browni-Naval Amphibious Base-Coronado-CA-Matt Sadowski

DoD Mission-Sensitive Species

DoD Partners in Flight has identified several bird species that occur on DoD installations that have the highest potential to impact the military mission should they become Federally listed under the Endangered Species Act, termed Mission-Sensitive Species (MSS). 

The DoD AKN Program is in the process of translating standardized protocols and monitoring guidance into the AKN system for each of these species. Click on the Mission-Sensitive Species of interest below for more information: 

See the DoD PIF MSS page for the most updated MSS list


Pinyon Jay

The Pinyon Jay (Gymnorhinus cyanocephalus) is an obligate bird of pinyon-juniper and other pine-juniper woodlands that has experienced significant population declines and is of increasing conservation concern. Data from the North American Breeding Bird Survey (BBS) suggest that Pinyon Jays have experiences an overall population loss of approximately 83.5% from 1967-2015 and an estimated additional 50% loss from 2016 to 2035 (the so-called population “half-life”). 

The DoD AKN Program has been working with the Partners in Flight Pinyon Jay Working Group (PJWG) as they finalize the Survey Protocol for Landscape Applications. The PJWG has developed field sampling methods to promote and facilitate the collection of standardized and biologically relevant data about Pinyon Jays across its range.

Are you one of the at least 17 DoD installations that have confirmed Pinyon Jay occurrences? Are you unsure about occurrence but want to start monitoring for the species? See below for recommendations for standardized survey methods to use on your installation. 

Survey and Monitoring Methods

Which survey method should I use? Take a look at the table below to compare various survey methods available.

Method FeaturePJWG Area Search ProtocolRoad-Based Point Count Protocol
Survey typeArea SearchPoint Count
Pedestrian or Road-basedPedestrianRoad-based
Can be used for rapid assessment of large areasNoYes
Suitable for site clearances (i.e., <2500ha)No1No
Sampling Effort3-4 hours per plot1 hour per plot (assuming five 6-minute point counts+drive time)
Repeat visits within a season recommendedYesYes
Suitable for identifying nesting colony sitesYesPossible (with additional pedestrian surveys off-road)
Suitable for surveys in areas where access is limited to roads (e.g., Impact Areas)NoYes
Can be used to monitor population trendsYes, with caveatsYes, with caveats
Data contributes to greater PJWG landscape-scale studyYesPossible2
Protocol suitable for AKNYesYes
Table adapted from A Survey Protocol for Pinyon Jay Road-based Point Count Surveys
1For small-scale project applications (<2,500ha), see forthcoming “Project Level Application” protocol from the PJWG
 2The PJWG plans to initiate discussions in 2023 aimed at producing a coordinated monitoring design utilizing the area search protocol but have not ruled out incorporation of other data sources.
Photo Credit: Bob Schallmann
  • DoD PIF Mission-Sensitive Species 
  • PIF Yellow Watch List 
  • Species of Greatest Conservation Need in most SWAPs across its range 
©Cornell University

PJWG Area Search Survey Protocol – for Landscape Applications

This Survey Protocol, created by the Pinyon Jay Working Group, describes how to collect standardized Pinyon Jay data for larger-scale applications that require a sampling approach. 

Full Written Survey Methods (PJWG): Pinyon Jay Survey Protocols for Landscape Applications 

AKN Sampling Protocol Definition (“ARSE_PIJA”): Area Search + Site Conditions 

Road-based Point Count Protocol

The road-based point count survey is a useful method of surveying for Pinyon Jays as an alternative to the PJWG area search survey protocol above where accessibility is limited to road travel-only (e.g., Impact Areas) or where whole area searches are infeasible or not needed. 

Full Written Survey Protocol: A Survey Protocol for Pinyon Jay Road-based Point Count Surveys 

AKN Sampling Protocol Definition (“PIJA_6min”): Road-based Point Count

Survey Method for Project Level Application (PJWG)

The PJWG is developing a second Survey Protocol to use in and around smaller project/management areas that can be completely surveyed (<2500 ha). 

Anticipated late 2023, visit the PJWG Website for the most recent information 

Bendire’s Thrasher

Bendire’s Thrasher (Toxostoma bendirei) is medium-sized thrasher native to the southwestern United States and northwestern Mexico. Due to sharp declines in availability of suitable habitat in recent decades, Bendire’s Thrashers are species of increasing conservation concern. Partners in Flight (2019) currently estimate that the species could undergo a 50% population reduction across the next 18 years and that the current rate of annual decline is ~4.3%.

The Desert Thrasher Working Group (DTWG) has developed field sampling methods to promote and facilitate the collection of standardized and biologically relevant data about Bendire’s Thrasher (as well as LeConte’s Thrasher and Loggerhead Shrike) across its range.

According to DoD PIF, an estimated minimum of 41 military installations are located within the species’ range. Do you have confirmed occurrence or are unsure about occurrence and want to start monitoring for the species on your installation? See below for the recommended DTWG standardized field sampling method to use on your installation.

Survey and Monitoring Methods

The DTWG developed standardized area search field survey and habitat evaluation methodologies to estimate distribution, determine population trends over time, and to identify habitat preferences for Bendire’s and LeConte’s Thrashers. Below you will find the AKN Sampling Protocol to be used with this field sampling method.

Visit the Desert Thrasher Working Group (DTWG) webpage for additional resources, including field data forms, habitat evaluation forms, and a Thrasher identification chart.

Photo Credit: Diana Spangler, eBird
  • DoD PIF Mission-Sensitive Species
  • IUCN Red List (Vulnerable)
  • PIF Red Watch List 
  • Species of Greatest Conservation Need in most SWAPs across its range 
©Cornell University

Bendire’s Thrasher Survey Method and AKN Sampling Protocols

Full Written Survey Protocol: Survey Protocol and Habitat Evaluation for LeConte’s (Toxostoma lecontei) and Bendire’s Thrasher

AKN Sampling Protocol Definitions

More species profiles COMING SOON!

Questions? Contact the DoD AKN Team at DoDAKN@erdc.dren.mil