» American Ornithologists' Union    Organization devoted to the scientific study of birds. Offers checklist of North American birds and membership data.    http://www.aou.org/

» Association of Field Ornithologists    Society of professional and amateur researchers. Journal of field ornithology, organizational data and literature citations.    http://www.afonet.org/

» Bird Studies Canada    Produces a quarterly journal, BirdWatch Canada, and is dedicated to advancing the understanding, appreciation and conservation of wild birds and their habitats.    http://www.bsc-eoc.org/

» Cooper Ornithological Society    Organization whose goal is to advance the scientific study of birds and their habitats and support their conservation.    http://www.cooper.org/

» Latvian Ornithological Society    This organization's aim is to maintain conditions ensuring sustainable existence of all bird species in Latvia.    http://www.lob.lv/en/

» Neotropical Ornithological Society    Information about the society and its journal, Ornitologia Neotropical.    http://www.ibiologia.unam.mx/links/neo/Neotropical%20Ornithology.htm

» Pacific Seabird Group (PSG)    This organisation is dedicated to the study of Pacific seabirds and their environment.    http://www.pacificseabirdgroup.org/

» Society for the Conservation and Study of Caribbean Birds    SCSCB promotes the scientific study and conservation of Caribbean birds and their habitats. It hosts biennial meetings and is active through working groups and projects.    http://www.scscb.org/

» Society of Canadian Ornithologists | Société des Ornithologistes du Canada    This society has an annual meeting, makes awards, produces a journal and interconnects with other worldwide ornithological societies.    http://www.sco-soc.ca/

» The Ornithological Sociaty of Japan    Produces two publications, Ornithological Science which includes research and original articles, and the Japanese Journal of Ornithology. Abstracts from back numbers are available on-line free of charge.    http://wwwsoc.nii.ac.jp/osj/english/home_e.html

» The Waterbird Society    This society is composed of biologists, researchers, conservationists, students, and others interested in the behavior, ecology, and conservation of waterbirds.    http://www.waterbirds.org/

» Western Field Ornithologists    Committed to field-oriented descriptive ornithology. Includes Western Birds table of contents, meetings and events.    http://www.wfo-cbrc.org/

» Wilson Ornithological Society    Organization of people who share a curiosity about birds. Publishes a quarterly journal and holds annual meetings.    http://www.ummz.lsa.umich.edu/birds/wos.html