11/4/2023 0 Comments Mississippi kite cornellThe observations provide distribution data, peak counts, nesting locales, migration timing, discovery of small populations and documentation of range expansion or contraction.Īs eBird amasses more and more information across the continent, researchers will be able to track bird species' movements within a season and among seasons. Observations from each of the nearly 7,000 registered eBirders are pooled in a vast database, which currently contains more than 15 million bird sightings. To answer such questions, field observations are essential, and that's where eBird comes in. And behind each selection are unanswered scientific questions. The species on eBird's four annual "Most Wanted" lists span geographic regions and include "hot" birds of interest to avid bird chasers and more common birds seen by backyard birders. Even the common American robin makes the list because its migration and breeding patterns aren’t well understood. Some, like the Mississippi kite and the sandhill crane, appear to be increasing in number and expanding their territory. Not all the birds on the Top 10 list are showing population declines. eBird, a project of the Cornell Lab and the Audubon Society, is supported by a $2.25 million award from the National Science Foundation (NSF). "Through eBird we are assembling a fine-scaled biological data set with broad geographic coverage-one of only a few available for addressing biogeographic questions that we've been unable to answer previously," said John Fitzpatrick, director of the Cornell Lab of Ornithology. This high-tech web portal lets birders everywhere track their sightings while contributing to the big-picture understanding of North American bird populations. The Brant-a small, dark goose vulnerable to declines in its various coastal populations-tops this year's Spring Migration Top 10 "Most Wanted" list, recently posted by eBird. the Brant, for poorly understood movements across North America from northern Canada and Alaska to Mexico. Telephone numbers or other contact information mayīe out of date please see current contact information at mediaĪRLINGTON, Va.-Wanted: Branta bernicla, a.k.a. This material is available primarily for archival
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