| 2025 | The Rose Family Foundation | Friends of the Cornell Lab of Ornithology Stamford, CT | B | $1,700,000 | paid | GENERAL PURPOSE GRANT | 202600989349101020 |
| 2025 | Donor Advised Charitable Giving Inc | Friends of the Cornell Lab of Ornithology Inc Stamford, CT | A | $79,424 | paid | PUBLIC, SOCIETAL BENEFIT | 202611199349300601 |
| 2025 | Vanguard Charitable Endowment Program | Friends of the Cornell Lab of Ornithology Inc Stamford, CT | A | $73,825 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202621329349306657 |
| 2025 | The Shanbrom Family Foundation C/O William J Shanbrom | Friends of the Cornell Lab of Ornithology Inc Stamford, CT | B | $50,000 | paid | AVIAN RESEARCH | 202611389349100781 |
| 2025 | The Nature Conservancy | Cornell Lab of Ornithology Ithaca, NY | A | $50,000 | paid | CONSERVATION ACTIVITIES | 202611349349310061 |
| 2025 | National Philanthropic Trust | Friends of the Cornell Lab of Ornithology Inc Ithaca, NY | A | $31,009 | paid | PUBLIC, SOCIETAL BENEFIT | 202601289349302480 |
| 2025 | The Nancy Friday Foundation C/O Kofler & Co Cpas Pc | Friends of the Cornell Lab of Ornithology Inc Stamford, CT | B | $10,000 | paid | GENERAL SUPPORT | 202611279349101436 |
| 2025 | American Online Giving Foundation Inc | The Friends of the Cornell Lab of Ornithology Inc Stamford, CT | A | $6,670 | paid | GENERAL SUPPORT | 202533509349301608 |
| 2025 | American Online Giving Foundation Inc | The Friends of the Cornell Lab of Ornithology Inc Stamford, CT | A | $6,670 | paid | GENERAL SUPPORT | 202641969349302754 |
| 2025 | Evergreen Foundation Inc | Friends of the Cornell Lab of Ornithology Inc Stamford, CT | B | $2,500 | paid | GENERAL SUPPORT | 202621289349101332 |
| 2025 | Hafener Charitable Foundation Inc | The Friends of the Cornell Lab of Orinthology Inc Riverside, CT | D | $500 | paid | CHARITABLE NEEDS | 202610909349100126 |
| 2025 | The Foundation Source Charitable Foundation Inc | Friends of the Cornell Lab of Ornithology Inc Stamford, CT | B | $50 | paid | General & Unrestricted | 202640449349100209 |
| 2024 | The Nature Conservancy | Cornell Lab of Ornithology Ithaca, NY | A | $50,000 | paid | CONSERVATION ACTIVITIES | 202511289349301711 |
| 2024 | Donor Advised Charitable Giving Inc | Friends of the Cornell Lab of Ornithology Inc Stamford, CT | A | $38,531 | paid | PUBLIC, SOCIETAL BENEFIT | 202541069349300729 |
| 2024 | Vanguard Charitable Endowment Program | Friends of the Cornell Lab of Ornithology Inc Stamford, CT | A | $27,367 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202511349349313096 |
| 2024 | National Philanthropic Trust | Friends of the Cornell Lab of Ornithology Inc Ithaca, NY | A | $18,300 | paid | HUMAN SERVICES | 202511339349301311 |
| 2024 | Don and Marilyn Allan Family Foundation | Friends of the Cornell Lab of Ornithology Inc Greenwich, CT | C | $13,000 | paid | CURRENT USE FOR CHARITABLE PURPOSES | 202442649349100104 |
| 2024 | American Endowment Foundation | Friends of the Cornell Lab of Ornithology Inc Ithaca, NY | A | $11,500 | paid | PHILANTHROPY | 202513219349310376 |
| 2024 | Western Colorado Community Foundation Inc | Cornell Lab of Ornithology Ithaca, NY | A | $5,485 | paid | ENGAGEMENT IN SCIENCE AND NATURE | 202501409349301030 |
| 2024 | Klem Family Foundation Inc | Friends of the Cornell Lab of Ornithology Riverside, CT | C | $1,000 | paid | GENERAL FUNDS | 202511849349100811 |
| 2024 | Triple T Foundation | Friends of the Cornell Lab of Ornithology Stamford, CT | B | $500 | paid | GENERAL PURPOSES | 202542889349100509 |
| 2024 | The Morgridge Family Foundation | Friends of the Cornell Lab of Ornithology Inc Stamford, CT | B | $250 | paid | General & Unrestricted | 202513149349101401 |
| 2024 | The Quinn Foundation | Friends of the Cornell Lab of Ornithology Inc Riverside, CT | C | $250 | paid | GENERAL OPERATING SUPPORT | 202541339349100309 |
| 2024 | David & Betsey Kilmartin Charitable Foundation Inc | Friends of the Cornell Lab of Ornithology Riverside, CT | C | $150 | paid | SUPPORT ONGOING OPERATIONS | 202540159349100264 |
| 2024 | Mst Family Foundation | The Friends of the Cornell Lab of Ornithology Inc Riverside, CT | C | $125 | paid | TO PROVIDE SUPPORT AND BENEFIT FOR THE CORNELL LABORATORY OF ORNITHOLOGY, AN ADMINISTRATIVE AND ACADEMIC UNIT OF THE UNIVERSITY | 202503219349103220 |
| 2023 | Schwab Charitable Fund | Friends of the Cornell Lab of Ornithology Inc Stamford, CT | A | $33,394 | paid | PUBLIC, SOCIETAL BENEFIT | 202411039349301716 |
| 2023 | Vanguard Charitable Endowment Program | Friends of the Cornell Lab of Ornithology Inc Riverside, CT | A | $22,600 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202441359349309439 |
| 2023 | American Endowment Foundation | Friends of the Cornell Lab of Ornithology Inc Ithaca, NY | A | $15,300 | paid | PHILANTHROPY | 202442479349301654 |
| 2023 | National Philanthropic Trust | Friends of the Cornell Lab of Ornithology Inc Ithaca, NY | A | $11,750 | paid | PUBLIC, SOCIETAL BENEFIT | 202431429349301368 |
| 2023 | The Blackbaud Giving Fund | Friends of the Cornell Lab of Ornithology Inc Greenwich, CT | C | $9,150 | paid | GENERAL SUPPORT | 202402119349300860 |
| 2023 | Bny Mellon Charitable Gift Fund C/O Bny Mellon Na | Friends of the Cornell Lab of Ornithology Inc Stamford, CT | A | $8,500 | paid | TO FURTHER THE ORGANIZATION'S EXEMPT PURPOSE | 202421799349300202 |
| 2023 | Western Colorado Community Foundation Inc | Cornell Lab of Ornithology Ithaca, NY | A | $6,178 | paid | GENERAL SUPPORT | 202401349349307960 |
| 2023 | Give Lively Foundation Inc | Friends of the Cornell Lab of Ornithology Inc Riverside, CT | A | $5,708 | paid | GENERAL SUPPORT | 202421979349301957 |
| 2023 | Klem Family Foundation Inc | Friends of the Cornell Lab of Ornithology Riverside, CT | C | $2,000 | paid | GENERAL FUNDS | 202421359349100542 |
| 2023 | Glff Inc | Friends of the Cornell Lab of Ornithology Inc Riverside, CT | C | $500 | paid | GENERAL SUPPORT | 202423189349100312 |
| 2023 | Gat Family Foundation | Friends of the Cornell Lab of Ornithology Inc Riverside, CT | C | $250 | paid | GENERAL | 202411369349103281 |
| 2023 | Sempra Foundation | Friends of the Cornell Lab of Ornithology Inc Greenwich, CT | C | $200 | approved, future | PHILANTHROPY | 202413099349101131 |
| 2023 | The Mollylou Foundation C/O Pkf O'connor Davies Advisory LLC | The Friends of the Cornell Lab of Ornithology Inc Riverside, CT | C | $100 | paid | GENERAL SUPPORT | 202441809349100304 |
| 2023 | Dr Daniel C Hartnett Family Foundation | Friends of the Cornell Lab of Ornithology Riverside, CT | C | $100 | paid | OPERATIONS EXPENSE | 202413209349102286 |
| 2023 | Mst Family Foundation | The Friends of the Cornell Lab of Ornithology Inc Riverside, CT | C | $70 | paid | TO PROVIDE SUPPORT AND BENEFIT FOR THE CORNELL LABORATORY OF ORNITHOLOGY, AN ADMINISTRATIVE AND ACADEMIC UNIT OF THE UNIVERSITY | 202402199349100775 |
| 2023 | Lincoln Financial Foundation Inc | Friends of the Cornell Lab of Ornithology Inc Greenwich, CT | C | $60 | paid | Matching Gift | 202401319349101935 |
| 2022 | Fidelity Investments Charitable Gift Fund | Friends of the Cornell Lab of Ornithology Inc Riverside, CT | A | $11,000,000 | paid | For grant recipient's exempt purposes | 202321309349304807 |
| 2022 | Fidelity Investments Charitable Gift Fund | Friends of the Cornell Lab of Ornithology Inc Riverside, CT | A | $11,000,000 | paid | For grant recipient's exempt purposes | 202430459349302913 |
| 2022 | The Nature Conservancy | Cornell Lab of Ornithology Ithaca, NY | A | $50,000 | paid | CONSERVATION ACTIVITIES | 202321329349304902 |
| 2022 | Natural Resources Foundation of Wisconsininc | Cornell Lab of Ornithology Greenwich, CT | A | $40,500 | paid | NEOTROPICAL FLYWAYS PROJECT | 202332309349300918 |
| 2022 | Vanguard Charitable Endowment Program | Friends of the Cornell Lab of Ornithology Inc Riverside, CT | A | $34,150 | paid | For recipient's exempt purpose | 202331359349303108 |
| 2022 | American Endowment Foundation | Friends of the Cornell Lab of Ornithology Inc Ithaca, NY | A | $18,500 | paid | PHILANTHROPY | 202332499349300338 |
| 2022 | National Philanthropic Trust | Friends of the Cornell Lab of Ornithology Inc Ithaca, NY | A | $11,550 | paid | PUBLIC, SOCIETAL BENEFIT | 202311359349313966 |
| 2022 | Schwab Charitable Fund | Friends of the Cornell Lab of Ornithology Inc Stamford, CT | A | $7,720 | paid | PUBLIC, SOCIETAL BENEFIT | 202330939349300403 |
| 2022 | The Blackbaud Giving Fund | Friends of the Cornell Lab (brokerage Account) Greenwich, CT | A | $5,606 | paid | GENERAL SUPPORT | 202312409349300046 |
| 2022 | Joseph and Barbara Ellis Foundation | Friends of the Cornell Lab of Ornithology Inc Riverside, CT | C | $5,000 | paid | GENERAL PURPOSE | 202311259349101021 |
| 2022 | Klem Family Foundation Inc | Friends of the Cornell Lab of Ornithology Riverside, CT | C | $1,000 | paid | GENERAL FUNDS | 202321359349104477 |
| 2022 | Panwy Foundation Inc C/O Eagle Cap Int'l LLC | Friends of the Cornell Lab of Ornithology Inc Riverside, CT | C | $200 | paid | CHARITABLE DONATION | 202313129349101406 |
| 2022 | American Express Foundation | Friends of the Cornell Lab of Ornithology Inc Stamford, CT | B | $124 | paid | GENERAL SUPPORT | 202333149349100933 |
| 2022 | Lincoln Financial Foundation Inc | Friends of the Cornell Lab of Ornithology Inc Greenwich, CT | C | $50 | paid | Matching Gift | 202311349349100086 |
| 2022 | Verizon Foundation | Friends of the Cornell Lab of Ornithology Inc Riverside, CT | C | $25 | paid | MIP PAYOUT FOR 05/04/2022 | 202303189349106350 |
| 2022 | The Denver Foundation | The Cornell Lab of Ornithology Ithaca, NY | A | $0 + $20,500 non-cash | paid | WILDLIFE PRESERVATION & PROTECTION | 202303199349312830 |
| 2021 | Fidelity Investments Charitable Gift Fund | Friends of the Cornell Lab of Ornithology Inc Riverside, CT | A | $13,000,550 | paid | For grant recipient's exempt purposes | 202221339349302787 |
| 2021 | Natural Resources Foundation of Wisconsininc | Cornell Lab of Ornithology Greenwich, CT | A | $25,000 | paid | NEOTROPICAL FLYWAYS PROJECT | 202221999349300902 |
| 2021 | Vanguard Charitable Endowment Program | Friends of the Cornell Lab of Ornithology Inc Riverside, CT | A | $14,900 | paid | FOR RECIPIENT'S EXEMPT PURPOSE | 202211339349310116 |
| 2021 | National Philanthropic Trust | Friends of the Cornell Lab of Ornithology Inc Ithaca, NY | A | $9,250 | paid | EDUCATION | 202231339349309863 |
| 2021 | Joseph and Barbara Ellis Foundation | The Friends of the Cornell Lab of Ornithology Inc Riverside, CT | C | $5,000 | paid | GENERAL PURPOSE | 202113199349101646 |
| 2021 | Texas Instruments Foundation | Friends of the Cornell Lab of Ornithology Inc Riverside, CT | C | $3,750 | paid | DONATIONS TO COLLEGES, UNIVERSITIES AND OTHER ORGANIZATIONS UNDER "MATCHING GIFTS PROGRAM." | 202242559349100709 |
| 2021 | Don and Marilyn Allan Family Foundation | Friends of the Cornell Lab of Ornithology Inc Greenwich, CT | C | $2,500 | paid | CURRENT USE FOR CHARITABLE PURPOSES | 202143149349101494 |
| 2021 | Klem Family Foundation Inc | Friends of the Cornell Lab of Ornithology Riverside, CT | C | $1,000 | paid | GENERAL FUNDS | 202211339349104166 |
| 2021 | Wa and Eb Moncrief Foundation | Friends of the Cornell Lab of Ornithology Riverside, CT | C | $250 | paid | GENERAL OPERATIONS | 202320659349101117 |
| 2021 | Joseph and Rae Gann Charitable Foundation | Friends of the Cornell Lab of Ornithology Inc Riverside, CT | C | $100 | paid | GENERAL | 202241339349100214 |
| 2021 | Gat Family Foundation | Friends of the Cornell Lab of Ornithology Inc Riverside, CT | C | $60 | paid | GENERAL | 202221369349105527 |
| 2020 | Natural Resources Foundation of Wisconsininc | Cornell Lab of Ornithology Greenwich, CT | A | $10,000 | paid | NEOTROPICAL FLYWAYS PROJECT | 202103169349306475 |
| 2020 | Alchemy Foundation | Friends of the Cornell Lab of Ornithology Inc Greenwich, CT | C | $500 | paid | General Support | 202111349349101446 |
| 2020 | Roger and Susan Stone Family Foundation C/O Susan Stone | Friends of the Cornell Lab of Ornithology Inc Greenwich, CT | C | $60 | paid | CHARITABLE | 202113169349102486 |
| 2019 | Shapiro Family Charitable Foundation | Friends of the Cornell Lab of Ornitholog Greenwich, CT | D | $1,000 | paid | General support | 201923479349100507 |
| 2019 | The Bluestone Foundation | Friends of the Cornell Lab of Ornithology Inc Greenwich, CT | C | $500 | paid | CURRENT USE FOR CHARITABLE PURPOSES | 202011329349100706 |
| 2018 | Wildlife Conservation Society | Cornell Lab of Ornithology Greenwich, CT | A | $100,000 | paid | CONSERVATION | 201931349349303613 |
| 2018 | Fidelity Investments Charitable Gift Fund | Friends of the Cornell Lab of Ornithology Inc Greenwich, CT | A | $8,355 | paid | FOR GRANT RECIPIENT'S EXEMPT PURPOSES | 201931359349301478 |
| 2018 | Natural Resources Foundation of Wisconsininc | Cornell Lab of Ornithology Greenwich, CT | A | $7,500 | paid | NEOTROPICAL FLYWAYS PROJECT | 201912269349300721 |
| 2018 | Eleanor Lloyd Dees Foundation | Friends of the Cornell Lab of Ornithology Greenwich, CT | C | $2,500 | paid | ENVIRONMENTAL - GENERAL OPERATING SUPPORT | 201933199349105248 |
| 2018 | Abbvie Foundation | Friends of the Cornell Lab of Ornithology Inc Greenwich, CT | C | $600 | paid | Matching Grant | 201931339349102918 |
| 2018 | The Bluestone Foundation | Friends of the Cornell Lab of Ornithology Inc Greenwich, CT | C | $500 | paid | CURRENT USE FOR CHARITABLE PURPOSES | 201911309349101306 |
| 2018 | Ganlee Fund C/O Wolf Maryles & Associates LLC | Friends of the Cornell Lab of Ornithology Inc Greenwich, CT | C | $300 | paid | TO AID THE DONEE ORGANIZATION IN CARRYING OUT ITS EXEMPT FUNCTION. | 201941309349101919 |