Offers a full featured guide to birds and bird watching.

Professional organization devoted to the scientific study of birds. Site provides information on membership, publications, and outreach programs.

Organization with membership open to professional and amateur ornithologists worldwide.

Conducts research and volunteer-based surveys to promote bird conservation.

Private organization aiming to ensure the sustainable existence of all bird species in the Latvian territory.

Conducts research and studies focusing on Pacific seabirds and their environments.

Professional organization facilitates studies and conferences on the conservation of birds of prey.

Regional group dedicated to the conservation of wild birds and their habitats in the Greater Caribbean area.

Site provides details on the society's membership along with information on policies, publications, and meetings.

International scientific organization focusing on the study and conservation of waterbirds. Also fosters communication and coordination among professionals in related fields.

Zoological nomenclature resource of birds of the world. Contains current valid and scientific avian names.