Promoting the enjoyment, study, and conservation of Wisconsin's birds.

Birding in Costa Rica with WSO

WSO provides opportunities for all people to enjoy resident and migratory birds, while being a leading steward of and ambassador for Wisconsin’s birds. We welcome all birders – young and old – beginners, backyard enthusiasts, tourists, conservationists, and professional ornithologists. Your membership dues and donations will enable us to produce our publications, events and programs, strengthen the state’s birding community and support bird-related research, conservation and education in Wisconsin. Because WSO is a nonprofit 501(c)(3) organization, you may deduct as a charitable donation any donation you make to WSO or one of its special funds. For membership information, please contact

Members Receive:

  • A New Member Welcome Kit
  • Quarterly issues of the Passenger Pigeon journal
  • Monthly issues of the Badger Birder newsletter
  • Advance notifications on our conventions, symposia and field trips
  • Opportunities to volunteer in exciting birding events and programs

Membership Categories

*Members wishing to receive the printed version of the Badger Birder newsletter are required to pay a $10 surcharge in addition to the price of membership.*

Household $40.00 Our basic membership, for individuals or households.
Sustaining $100.00 For individuals or members who can support our mission at a higher level.
Conservation Advocate $200.00 At this level, half of your membership dues ($100) will go to our dedicated Conservation Fund.
Senior $25.00 Must be 65 years or older.
This membership level does not include a subscription to the Passenger Pigeon journal.
Student $25.00 Must be a full-time student.

How To Join or Renew

ONLINE PAYMENT (using credit card or PayPal).

PAY BY MAIL, please print and mail the WSO NEW MEMBER FORM to Wisconsin Society for Ornithology, PO Box 3024, Madison, WI 53704-3024.