March 5, 2019:
The Avian Conservation Assessment Database (ACAD) has been completely updated in 2019
to include assessment data for 1604 breeding species found from Canada to Panama,
including waterfowl, shorebirds, waterbirds and landbirds, based on the latest data
on population size, trend, distribution and threats, as well as regional assessments
for all breeding birds in all U.S. and Canadian BCRs. Regional assessments for Mexico
and Central America are currently available via download only from the ACAD homepage.
The Landbird Population Estimates Database (PED) has been updated in 2019 to include the
latest population size estimates for 453 landbirds in the U.S. and Canada, including
measures of uncertainty as estimated by Stanton et al. 2019. View or download estimates
at continental, BCR, and State/Provincial scales. Estimates for BCR x state/province
polygons are now available only via download from the PED homepage.
May 2017:The PIF Species Assessment Database, now called the Avian Conservation
Assessment Database, has been updated – and expanded! The ACAD (for short) includes all
regularly-occurring bird species found in North America and adjacent waters from Canada to
Panama, including approximately 1600 species of waterbirds, shorebirds, waterfowl and landbirds.
Currently, only the Global ACAD is available while the Regional ACAD undergoes a similar update,
expansion and review. For now, the 2012 version of the Regional Species Assessment Database
for landbirds remains available, but we caution that this database contains information that has now
been updated in the Global ACAD. We expect the Regional ACAD to be completed by the
end of 2017, at which time it will be posted on this site.
The expansion of the ACAD to include all avian taxa in continental North America was made
possible through the work and collaboration of various groups in addition to PIF, including the U.S.
Shorebird Conservation Partnership, the Migratory Bird Joint Ventures, and dozens of ornithologists
from across North America who helped populate and review the contents of the database.
We welcome additional feedback from other groups and individuals to improve upon the information
in this first version of the ACAD. Please contact us
if you find any errors or omissions. We expect to update the Global ACAD within 1-2 years with
additional input received.