On-line Field Guides 

• Cornell Lab of Ornithology

• Patuxent Wildlife Research Center

• Ducks at a Distance

On-line Information

• (SAMBI) Southat Atlantic Migratory Bird Initiative

• Grants Awarded Under the New Neotropical
  Migratory Birds Conservation Act

• Bird Banding

• Breeding Bird Surveys

• Christmas Bird Count

• Citizen Science Bird Population Studies

• Monitoring Avian Productivity and Survivorship 

• Natureserve