Nonprofit · EIN 73-1023595
GEORGE MIKSCH SUTTON AVIAN RESEARCH CENTER INC
Tax-exempt · BARTLESVILLE, OK 74005
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| June 30, 2025 | 990 | $1,208,607 | $1,591,307 | -$382,700 | $5,087,481 | $159,284 | $4,928,197 |
| June 30, 2024 | 990 | $774,976 | $1,577,313 | -$802,337 | $5,201,346 | $163,140 | $5,038,206 |
| June 30, 2023 | 990 | $1,092,963 | $1,469,799 | -$376,836 | $5,696,626 | $161,545 | $5,535,081 |
Financial details: 990 for the year ended June 30, 2025
Revenue
- Contributions, gifts and grants
- $1,136,166
- of which government grants
- $645,092
- Program service revenue
- $0
- Investment income
- $2,131
- Net gain from sales of assets
- $2,000
- Net income from fundraising events
- $65,531
- Other revenue
- $70,310
Expenses
- Grants and similar amounts paid
- $0
- Other salaries and wages
- $889,979
- Salaries, compensation and benefits (total)
- $997,366
- Professional fundraising fees
- $0
- Legal fees
- $2,501
- Accounting fees
- $67,097
- Travel
- $42,367
- Depreciation
- $162,551
- Program services (functional)
- $1,315,259
- Management and general (functional)
- $225,986
- Fundraising (functional)
- $50,062
Balance sheet and other
- Total assets, start of year
- $5,201,346
- Total assets, end of year
- $5,087,481
- Total liabilities, end of year
- $159,284
- Net assets, end of year
- $4,928,197
- Land, buildings and equipment
- $2,312,159
- Net assets without donor restrictions
- $3,738,849
- Net assets with donor restrictions
- $1,189,348
- Gross receipts
- $1,283,790
- Employees
- 26
- Volunteers
- 188
- Year formed
- 1976
- State of legal domicile
- OK
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended June 30, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| WARREN D HARDEN | CHAIRMAN Trustee or director, Officer | 1 | $0 |
| DR KIRBY LEHMAN | VICE-CHAIRMA Trustee or director, Officer | 1 | $0 |
| ROGER BOX | TREASURER Trustee or director, Officer | 3 | $0 |
| NATE BARNS | DIRECTOR Trustee or director | 1 | $0 |
| BARBARA L BATES | DIRECTOR Trustee or director | 1 | $0 |
| GRANT FOX | DIRECTOR Trustee or director | 1 | $0 |
| STEVEN J FURCICH | DIRECTOR Trustee or director | 1 | $0 |
| CHARLES J NEWLING | DIRECTOR Trustee or director | 1 | $0 |
| NOPPADOL PAOTHONG | DIRECTOR Trustee or director | 1 | $0 |
| HARVEY PAYNE | DIRECTOR Trustee or director | 1 | $0 |
| DR RYAN PITTS | DIRECTOR Trustee or director | 1 | $0 |
| JAY PRUETT | DIRECTOR Trustee or director | 1 | $0 |
| LISA RIGGS | DIRECTOR Trustee or director | 1 | $0 |
| GREGORY SEPTON | DIRECTOR Trustee or director | 1 | $0 |
990 for the year ended June 30, 2024: 19 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| WARREN D HARDEN | CHAIRMAN Trustee or director, Officer | 1 | $0 |
| DR KIRBY LEHMAN | VICE-CHAIRMA Trustee or director, Officer | 1 | $0 |
| ROGER BOX | TREASURER Trustee or director, Officer | 3 | $0 |
| GREGORY SEPTON | SECRETARY Trustee or director, Officer | 1 | $0 |
| NATE BARNS | DIRECTOR Trustee or director | 1 | $0 |
| BARBARA L BATES | DIRECTOR Trustee or director | 1 | $0 |
| DAVID DELAHAY | DIRECTOR Trustee or director | 1 | $0 |
| DR CHRISTOPHER FAGAN | DIRECTOR Trustee or director | 1 | $0 |
| HEATHER LEHMAN FAGAN | DIRECTOR Trustee or director | 1 | $0 |
| STEVEN J FURCICH | DIRECTOR Trustee or director | 1 | $0 |
| KRISTOPHER E KOEPSEL | DIRECTOR Trustee or director | 1 | $0 |
| CHARLES J NEWLING | DIRECTOR Trustee or director | 1 | $0 |
| NOPPADOL PAOTHONG | DIRECTOR Trustee or director | 1 | $0 |
| HARVEY PAYNE | DIRECTOR Trustee or director | 1 | $0 |
| DR RYAN PITTS | DIRECTOR Trustee or director | 1 | $0 |
| JAY PRUETT | DIRECTOR Trustee or director | 1 | $0 |
| LISA RIGGS | DIRECTOR Trustee or director | 1 | $0 |
| BONNIE ROGERS | DIRECTOR Trustee or director | 1 | $0 |
| C MICHAEL SCHROEDER | DIRECTOR Trustee or director | 1 | $0 |
990 for the year ended June 30, 2023: 20 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| DR LENA LARSSON | EXECUTIVE DI Officer | 40 | $89,601 |
| DR KIRBY LEHMAN | INTERIM CHAI Trustee or director, Officer | 1 | $0 |
| ROGER BOX | TREASURER Trustee or director, Officer | 1 | $0 |
| GREGORY SEPTON | SECRETARY Trustee or director, Officer | 1 | $0 |
| NATE BARNS | DIRECTOR Trustee or director | 1 | $0 |
| BARBARA L BATES | DIRECTOR Trustee or director | 1 | $0 |
| DAVID DELAHAY | DIRECTOR Trustee or director | 1 | $0 |
| CHRISTOPHER FAGAN | DIRECTOR Trustee or director | 1 | $0 |
| HEATHER LEHMAN FAGAN | DIRECTOR Trustee or director | 1 | $0 |
| STEVEN J FURCICH | DIRECTOR Trustee or director | 1 | $0 |
| WARREN D HARDEN | DIRECTOR Trustee or director | 1 | $0 |
| KRISTOPHER E KOEPSEL | DIRECTOR Trustee or director | 1 | $0 |
| CHARLES J NEWLING | DIRECTOR Trustee or director | 1 | $0 |
| NOPPADOL PAOTHONG | DIRECTOR Trustee or director | 1 | $0 |
| HARVEY PAYNE | DIRECTOR Trustee or director | 1 | $0 |
| DR RYAN PITTS | DIRECTOR Trustee or director | 1 | $0 |
| JAY PRUETT | DIRECTOR Trustee or director | 1 | $0 |
| LISA RIGGS | DIRECTOR Trustee or director | 1 | $0 |
| BONNIE ROGERS | DIRECTOR Trustee or director | 1 | $0 |
| DR STEVE SHERROD | DIRECTOR Trustee or director | 1 | $0 |
Address and contacts
- Address (IRS master file)
- PO BOX 2007, BARTLESVILLE, OK 74005-2007
- Principal officer (990 for 2024)
- WARREN D HARDEN
- Signed the 990
- ROGER BOX, TREASURER
- Phone
- (918) 336-7778
- Website
- WWW.SUTTONCENTER.ORG
- Return prepared by
- STOTTS ARCHAMBO MUEGGENBORG & BARCLAY PC
Mission
THE ORGANIZATION PROMOTES CONSERVATION, EDUCATION, AND RESEARCH OF ENDANGERED, RARE, AND UNDERSTUDIED BIRDS.
Program accomplishments
- CAPTIVE BREEDING PROGRAMS TO SUSTAIN POPULATIONS OF RARE AND THREATENED SPECIES.Expenses $1,083,180
- PROMOTE CONSERVATION, EDUCATION, AND RESEARCH OF ENDANGERED, RARE, AND UNDERSTUDIED BIRDS THROUGH PUBLICATIONS, STUDIES, AND EDUCATIONAL PROGRAMMING.Expenses $232,079
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in June, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | June 30, 2026 | November 16, 2026 | Not due yet |
| 2024 | June 30, 2025 | November 17, 2025 | 990 on file |
| 2023 | June 30, 2024 | November 15, 2024 | 990 on file |
IRS record
- EIN
- 73-1023595
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1977
- Accounting year ends
- June
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Animal-related (D30)
- Assets (IRS master file)
- $5,087,481
- Income (IRS master file)
- $1,283,790
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | June 2025 | $1,208,607 | $1,591,307 | $5,087,481 | XML |
| 990 | June 2024 | $774,976 | $1,577,313 | $5,201,346 | XML |
| 990 | June 2023 | $1,092,963 | $1,469,799 | $5,696,626 | XML |
| 990 | June 2022 | $1,216,760 | $1,444,847 | $5,794,682 | IRS |
| 990 | June 2021 | – | – | – | IRS |
| 990 | June 2020 | – | – | – | IRS |
| 990 | June 2019 | – | – | – | IRS |
| 990 | June 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 73-1023595).
Questions about GEORGE MIKSCH SUTTON AVIAN RESEARCH CENTER INC
- What is the EIN of GEORGE MIKSCH SUTTON AVIAN RESEARCH CENTER INC?
- The employer identification number (EIN) of GEORGE MIKSCH SUTTON AVIAN RESEARCH CENTER INC is 73-1023595.
- Is GEORGE MIKSCH SUTTON AVIAN RESEARCH CENTER INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1977.
- Are donations to GEORGE MIKSCH SUTTON AVIAN RESEARCH CENTER INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does GEORGE MIKSCH SUTTON AVIAN RESEARCH CENTER INC file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of GEORGE MIKSCH SUTTON AVIAN RESEARCH CENTER INC due?
- The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did GEORGE MIKSCH SUTTON AVIAN RESEARCH CENTER INC last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended June 2025.
- Who is the principal officer of GEORGE MIKSCH SUTTON AVIAN RESEARCH CENTER INC?
- The 990 for the year ended June 30, 2025 names WARREN D HARDEN.
- Who are the officers and directors of GEORGE MIKSCH SUTTON AVIAN RESEARCH CENTER INC?
- The 990 for the year ended June 30, 2025 lists 14 people; 0 received compensation from the organization.
- How much revenue does GEORGE MIKSCH SUTTON AVIAN RESEARCH CENTER INC have?
- On its 990 for the year ended June 30, 2025 it reported revenue of $1,208,607, expenses of $1,591,307 and total assets of $5,087,481 at year end.
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