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Summaries of Banding and Encounter Data

Use this form to retrieve total numbers of birds banded and encountered by species, country, year, and state/province.

Certain records are not included in these totals due to the fact that they contain inexact data. Examples include unknown encounter dates and reports of bands found or purchased.

Encounter counts listed by state/province are those that were encountered within the state/province in the designated year regardless of where or when they were banded.

For countries other than United States and Canada, data are summarized only at the country level; states or provinces are not selectable.

Because bands are occasionally replaced on birds, the counts of banded birds may be slightly inflated by birds who have worn more than one band.

There may be a slight delay in retrieving the data.

The data on this page are updated every Monday.