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- At-large Membership
At-large Membership in MOS
- MOS Treasurer
- Dues for Member At Large
- The benefits received from Maryland Ornithological Society membership dues are not considered to be substantial, as determined by criteria in IRS Publication 526. Therefore, members can claim a tax deductible charitable contribution for the full amount of their membership dues.
- Checks for at-large memberships should be made payable to the Maryland Ornithological Society.
Send these to the MOS Treasurer at the address below.
View the membership form and print a copy for mailing.
Maryland Ornithological Society
PO Box 105, Monrovia, MD 21770-0105