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IBP Needs Your Support!
The Institute for Bird Populations is a California tax-exempt non-profit corporation. We rely upon contributions from people who care about birds to continue and expand our work. Please consider supporting our bird conservation efforts with a tax-deductible contribution, and multiplying the impact of your support by encouraging friends and family to support IBP. We are able to offer the thank-you benefits listed below. Click on the desired contribution amount to pay via PayPal, which accepts credit cards.

Member’s Circle—Gifts of $1-$499. As thanks for your support, you will receive:

  • Periodic e-newsletter updates on IBP activities
  • IBP static decal
  • Paper subscription to IBP’s Annual Report

Supporter’s Circle—Gifts of $500-$4,999. As thanks for your support, you will receive:

  • All items listed above
  • Part 1 or Part 2 of Peter Pyle’s acclaimed Identification Guide to North American Birds, signed by Peter (please indicate which Part you would prefer to receive)

Leader’s Circle—Gifts of $5,000 or more. As thanks for your support, you will receive:

  • All items listed above
  • An invitation to join IBP Executive Director Rodney Siegel or another IBP staff member for a day of birding or bird-banding at a MAPS station in Yosemite National Park, or another mutually agreeable location

If you would prefer to donate by check, please send your contribution to:

The Institute for Bird Populations
PO Box 1346
Point Reyes Station, CA 94956

Thank you for your support!

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Photo Credits: Top of Page, Pucmus; Right Column Top, IBP
Bird Photo

Your donations support important research in avian ecology and conservation. A recent study of Black-headed Grosbeaks was funded largely by contributions from IBP supporters. The adult male Black-headed Grosbeak pictured above is wearing a tiny GPS unit that recorded his precise location every six weeks for one year. Nine grosbeaks were fitted with the units in 2014 at an IBP MAPS station in Yosemite National Park.

Our objectives were to establish links between breeding, migration, and wintering areas, and document “molt migration.” Fall molt is a vulnerable time for birds: it is energetically taxing and may impair flight. Recent research indicates many species suspend their southbound migration to molt in the southwestern U.S. and northwestern Mexico, where late summer monsoon rains provide ephemeral but abundant insects, seeds, and protective cover.

In 2015 we recovered one GPS tag when the bird returned to Yosemite to breed. The data revealed the precise locations where he spent the fall in northwestern Mexico, and the winter in southern Mexico. This study was only the second using tracking technology to document molt-migration in landbirds in western North America, and the first to do so using highly precise GPS. Contributions from supporters like you make this kind of work possible.