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Project Overview

Long-billed Curlew Satellite Project

We’ve been studying Long-billed Curlews in Idaho since 2009. Of 15 birds we’ve outfitted with transmitters on public lands in SW Idaho in recent years, at least 6 have been shot – that’s 40%, a very unsustainable rate of (illegal) human-caused adult mortality for a long-lived species.

Read the latest Blog posts about our Curlew project:

Curlew Blog Posts

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Long-billed Curlew populations, especially in southwestern Idaho, are declining. Because of this, they are listed as a species of concern, and a Species of Greatest Conservation Need in Idaho.

Threats like habitat loss and degradation, toxins, and human disturbance could be responsible for curlew declines. These threats may occur either on the breeding grounds or in wintering areas on the Pacific or Gulf coasts, or northern Mexico.
We are using Satellite Transmitters to answer some basic questions and find out why their numbers are decreasing:Photo by Liz Urban

  • What migratory routes do they take to reach their wintering grounds?
  • When do curlews from the Intermountain west arrive on their wintering grounds and where do they go?
  • What habitats do they use during migration and winter?

These answers will help us form conservation partnerships and make a plan to conserve curlews across Canada, the US and Mexico!

  •  We are learning that the curlews that breed in the Intermountain West spend the winter in two main areas: northern Mexico and California’s Central Valley, depending on whether they are from a more eastern or western population.

Photo by George Kellogg

Curlews on their wintering grounds in California. Photo by George Kelogg

Donate to the project

Would you help support a Long-billed Curlew transmitter? Even $20 helps! All donations are tax deductible.

Donate Online

You can make a secure Credit Card donation online by visiting the Boise State University Giving page HERE. Once on the page, set the designation to “IBO Long-billed Curlew Satellite Tracking Project”. Then follow instructions on the website to complete your donation.

To Donate By Check:

please mail your contribution made out to the Intermountain Bird Observatory to:

Intermountain Bird Observatory
Department of Biological Sciences
Boise State University
1910 University Dr.
Boise, ID 83725-1515

Be sure that your check says CURLEW TRACKING in the memo.