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Endangered Species Map & Species of Concern

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Practical Tips to Avoid Environmental Risk on all Your Projects

Download our environmental permitting checklist to get a step-by-step list of ways to protect your project from the 9 most common environmental risks.

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Identify which species call your project 'home' with Transect.

What is a Species of Special Concern? 


Species of Special Concern 

Species of Special Concern (or species of concern for short) is a term used by different conservation and regulatory groups. The lead federal species protection agency, the U.S. Fish and Wildlife Service (USFWS), defines Species of Concern as those rare species that might need concentrated conservation efforts. This protection can include wildlife species that do not hold a conservation status of being an endangered or threatened species but can become one.

We use this term similarly: Species of Concern are those species that need additional action on a project site. The additional action might be a habitat assessment, a presence/absence survey, or a permit.

Sensitive Species Definition

The sensitive species definition requires special management to limit the possibility of relisting under the Endangered Species Act (ESA), federal candidate species, and delisted species the five years following their delisting. These species are regarded as sensitive species by the Bureau of Land Management. These species and their surrounding ecosystems are evaluated over time to ensure the impacts of mitigation efforts are maintained.

Project developments can disrupt a critical habit and the natural resources that sensitive species depend on for survival. Because there are federal and state laws that protect these special concern species, and those laws often trigger lengthy permitting timelines, it is essential to know as soon as possible if there are any species of concern on your proposed project.

Critical Habitat

A critical habitat is an area with the physical and biological features essential to species conservation and is protected to aid a listed species’ recovery. These regions are regulated and subject to environmental permitting.

Endangered Species Protection

Many regulations and regulatory bodies have been created to aid in endangered species conservation within the U.S. Notable examples of these efforts are the Endangered Species Act (ESA) and the Fish and Wildlife Service (FWS). Land developers should familiarize themselves with these rules and agencies as they will likely impact development projects.

Endangered Species Act

The Endangered Species Act is the primary federal environmental protection that protects sensitive plant species and animal species in the U.S to maintain biodiversity. Protection can apply to critically endangered, endangered, threatened endangered species, and near-threatened species.

The ESA makes "take" of certain listed species illegal. This is any type of harassment, harm, wounding, or pursuit, as well as killing, capturing, or collecting. The definition of "take" is not limited to purposeful take. Take also includes “incidental take."

Incidental Take

Incidental take is defined as those actions that may harm or kill a federally protected species as part of an otherwise lawful activity. Examples of “incidental take” include disrupting bird nests from tree removal, harming fish from stormwater runoff, and collision with bats from wind turbines.

Learn more about the Endangered Species Act here 


State and Local Regulations for Threatened Species

For most states, incidental take is only prohibited for federally protected species. However, many states also have a state regulation requiring a permit for state-protected species' that are impacted. A sample of the states with their own species permits includes Illinois, New York, California, Massachusetts, Maryland, Kansas, Utah, and Vermont (among others).

Additionally, state wildlife agencies often comment on potential impacts to state-listed species for funded or sponsored projects by a state or federal agency. Typically, these comments do not lead to additional permitting but will need to be addressed - thus extending the project timeline if not adequately anticipated.

Learn more about State and Local Regulations in Transect here >>

Free Permitting Checklist

Practical Tips to Avoid Environmental Risk on all Your Projects

Download our environmental permitting checklist to get a step-by-step list of ways to protect your project from the 9 most common environmental risks.

Download Your Checklist

How to Identify Endangered Species in My Area? 

Whether you’re laying new infrastructure, planning out a new commercial development site, or building a new cell tower, identifying species of concern is critical in your project budget, timeline, and footprint planning.

Traditionally, this step is performed by an environmental expert performing environmental due diligence. Endangered species mapping and other software now give developers the freedom to identify special species of concern earlier in their due diligence process. Performing an endangered species search of your project site can now be accelerated accurately.

Here are some ways you can identify species of concern: 

Use the USFWS IPAC Tool

The US Fish and Wildlife Service provides a tool that allows you to search for species that may occur in your project. This tool divides species by categories, such as invertebrates, amphibians, and plants, yielding significant results in each category. The USFWS IPAC uses general range data in its analysis, and the results typically include more species than may actually occur.

Use the Center for Biological Diversity’s Map

Perform your endangered species search with a list of species of concern by county with the corresponding endangered species map.

Explore the WWF’s Endangered Species List

This resource won’t help you see what species of concern near you or provide an endangered species map. However, you will find interesting species information, photographs, and status information.

Use the National Marine Fisheries Service (NMFS) Critical Habitat Mapper

This interactive map is used to review critical habitat spatial data. This map includes information regarding critical habitats established by the National Oceanic and Atmospheric Administration (NOAA). The metadata for this map is available for review in NMFS’ InPort.

Use Endangered Species Mapping Software to Perform a Species of Concern Analysis

Complete an endangered species search or critical habitat determinations for your project location using software. Transect evaluates many different datasets, from county ranges to individual element occurrences, and compares them with onsite habitat characteristics to determine the potential for a species of concern to occur within a project. Transect’s database has the most up-to-date information and profiles for species of concern. Explore your potential project in Transect to quickly locate and generate a map of endangered species hotspots near you. Land developers can draw polygons or input the location of potential projects to see if any protected species appear on their project site.

Endangered species mapping tools like Transect allow for faster and more effective site selection. These maps use historical data regarding habitats and occurrence trends to map these species. Developers can save time on early-stage environmental due diligence and late-stage recovery efforts by using an endangered species map. While other GIS tools and DIY habitat maps rely on a margin of guesswork and wishful thinking, Transect’s map includes a degree of confidence regarding a species’ occurrence on a project site.

Looking for More?

Explore the Bald and Golden Eagle & Migratory Bird Treaty Acts here


What Endangered Species Permit Do I Need? 

Under the Endangered Species Act, there are two ways to get a permit from U.S. Fish and Wildlife Service for project impacts to federally protected species. The one that your project will use depends entirely on a very nuanced regulatory mechanism (the presence of a federal nexus or not). Below are the two permit options available to any project that is likely to affect federally protected species:

Section 7 ESA Consultation 

This technically isn't a permit, but it looks and feels like one. If your project requires any other federal permit, like a Clean Water Act section 404 permit or NEPA environmental review, section 7 of the Endangered Species Act requires the federal permitting agency to ensure their action does not adversely affect protected species. Therefore, the federal permitting agency is required and motivated to help drive the section 7 consultation process with USFWS. Section 7 consultation is always the preferred method for addressing the effects on federally protected species because 1. the federal action agency is driving the process (so USFWS tends to be more responsive), and 2. There is an established timeline to complete the consultation, so you can better estimate your project schedule. This is generally within 135 days of consultation initiation, though the comment resolution process is a common culprit for extending this timeline.

ESA Section 10(a)(1)(b) Individual Permit

A section 10(a)(1)(b) permit is required for projects that will impact protected species but that don't have a federal nexus to access the section 7 consultation process. This process has no established timeline and is known to extend 24 months or beyond. A section 10 permit requires public review and comment and preparation of in-depth Habitat Conservation Plans.

Get more Endangered Species Act guidance here 

Free Permitting Checklist

Practical Tips to Avoid Environmental Risk on all Your Projects

Download our environmental permitting checklist to get a step-by-step list of ways to protect your project from the 9 most common environmental risks.

Download Your Checklist