Support Charity Navigator
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Maryland Ornithological Society Inc.

Mission

THE MARYLAND ORNITHOLOGICAL SOCIETY (MOS) FOSTERS INTERACTION AND EXCHANGE OF INFORMATION AMONG PEOPLE INTERESTED IN WILD BIRDS TO ENCOURAGE THE STUDY AND ENJOYMENT OF BIRDS AND THE NATURAL WORLD, AND TO PROMOTE THE CONSERVATION AND PROTECTION OF BIRDS.
BALTIMORE MD | EIN: 52-6046316
Is this your nonprofit?
501(c)(3) organization
4915 GREENSPRING AVE,
BALTIMORE MD 21209-4642
https://WWW.MDBIRDS.ORG
301-881-7544
Maryland Ornithological Society Inc.

Mission

BALTIMORE MD | EIN: 52-6046316
Is this your nonprofit?
501(c)(3) organization
4915 GREENSPRING AVE,
BALTIMORE MD 21209-4642
https://WWW.MDBIRDS.ORG
301-881-7544
Beacon Report

Great
Good
Needs Improvement
Poor
Incomplete
Additional Information
Website Reported on Tax Form:Yes
SCORE100%
Disclosing the charity’s website promotes transparency and provides access to the public.
Source: Public data from IRS Form 990. Fiscal Year 2025.
No Material Diversion of Assets:Yes
SCORE100%
Records Retention Policy:No
SCORE0%
Tax Form Disclosed on Website:Yes
SCORE100%
Accountability Panel
Score	Metric
100%	Website Reported on Tax Form:Yes Disclosing the charity’s website promotes transparency and provides access to the public. Source: Public data from IRS Form 990. Fiscal Year 2025.
100%	No Material Diversion of Assets:Yes
0%	Records Retention Policy:No
100%	Tax Form Disclosed on Website:Yes
Science behind the numbers
Nonprofit Resources

Nonprofit Resources

Maryland Ornithological Society Inc.

Mission

Maryland Ornithological Society Inc.

Mission

Beacon Report
