www.mbr-pwrc.usgs.gov

Data on North American birds, including the Breeding Bird Survey, Christmas Bird Count trends, migratory bird projects, the Bird Identification InfoCenter, checklists, ID tips, and quiz.

URLs from www.mbr-pwrc.usgs.gov:

URL: http://www.mbr-pwrc.usgs.gov/id/mexlist1.html

URL: http://www.mbr-pwrc.usgs.gov/software.html

URL: http://www.mbr-pwrc.usgs.gov/id/framlst/i1570id.html

URL: http://www.mbr-pwrc.usgs.gov/id/framlst/i1360id.html

URL: http://www.mbr-pwrc.usgs.gov/id/framlst/i1340id.html

URL: http://www.mbr-pwrc.usgs.gov/id/framlst/i1710id.html

URL: http://www.mbr-pwrc.usgs.gov/id/framlst/i1470id.html

URL: http://www.mbr-pwrc.usgs.gov/id/framlst/i1500id.html

URL: http://www.mbr-pwrc.usgs.gov/id/framlst/i1510id.html

URL: http://www.mbr-pwrc.usgs.gov/id/framlst/i1540id.html

URL: http://www.mbr-pwrc.usgs.gov/id/framlst/i1550id.html

URL: http://www.mbr-pwrc.usgs.gov/id/framlst/i1310id.html

URL: http://www.mbr-pwrc.usgs.gov/id/framlst/i1580id.html

URL: http://www.mbr-pwrc.usgs.gov/id/framlst/i1620id.html

URL: http://www.mbr-pwrc.usgs.gov/id/framlst/i4240id.html

URL: http://www.mbr-pwrc.usgs.gov/id/framlst/i4340id.html

URL: http://www.mbr-pwrc.usgs.gov/id/framlst/i4410id.html

URL: http://www.mbr-pwrc.usgs.gov/id/framlst/i4330id.html

URL: http://www.mbr-pwrc.usgs.gov/id/framlst/i4180id.html

URL: http://www.mbr-pwrc.usgs.gov/id/framlst/i4210id.html