Sierra Foothills Audubon Society
It is the mission of the Sierra Foothills Audubon Society to educate ourselves and others to the variety and the beauty of our natural environment and to protect our wildlife and natural places.
Sierra Foothills Audubon Society at a glance
In short: Sierra Foothills Audubon Society gave $49K across 3 grants in 2025 (avg $16K), mostly in California. Source: 2025 IRS Form 990.
- Annual giving (2025)
- $49,444
- -5.0% vs 2024
- Grants made (2025)
- 3
- Average grant
- $16,481
- Median grant
- $12,500
- Total assets
- $577,389
- +0.6% vs 2024
- Primary geography
- California (100% of itemized 2025 grant dollars)
- Latest 990 filing
- Form 990, 2025 View filing
Data from IRS Form 990, 2025; updated September 2026.
How to apply to Sierra Foothills Audubon Society
- Next open deadline
- January 31, 2027 (Non-profit Organization Grants)
Open Grants
2 open opportunities from Sierra Foothills Audubon Society
Who Sierra Foothills Audubon Society funds
How this funder distributes its grants
Top Recipients
Top 3 recipients in 2025
The largest 2025 recipient was Institute for Bird Populations ($31K). Together the top 3 received $49K.
Grant Size Distribution
5 grants across all recorded years
The most common grant size was under $50K: 5 grants of 5 (100%).
Geographic Focus
Where this funder awards grants
Grant Distribution by State
Share of 2025 grant dollars across all 3 itemized grants.
States
Cities
Giving History
Giving Over Time
Total grant dollars and number of grants per year
From 2021 to 2025, annual grant giving ranged from $26K (2021) to $52K (2024). In 2025 it made 3 grants totaling $49K.
Hatched bars: grants paid as reported on the IRS filing, which lists no individual grants for that year.
Grants by year
Grant recipients and amounts by year
| Recipient | Purpose | Amount |
|---|---|---|
| Institute for Bird Populations Petaluma, CA | Bird Studies | $31,356 |
| Placer Nature Center Auburn, CA | — | $12,500 |
| San Francisco Bird Observatory Milpitas, CA | — | $5,588 |
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Financial History
Multi-year comparison from IRS filings
| Filing year | Total Assets | Revenue | Expenses | Grants paid | Grants | Net Investment Income |
|---|---|---|---|---|---|---|
| 2025 | $577,389 | $83,913 | $80,303 | $49,444 | 3 | $62,017 |
| 2024 | $573,779 | $93,990 | $66,759 | $52,028 | Total only | $75,165 |
| 2023 | $549,699 | $28,087 | $67,347 | $51,601 | Total only | $12,560 |
| 2021 | $662,761 | $26,049 | $53,891 | $26,056 | 2 | $11,817 |
"Total only": grants paid as reported on the IRS filing, which lists no individual grants for that year.
About Sierra Foothills Audubon Society
Based on IRS filings
Sierra Foothills Audubon Society is a public charity, based in Grass Valley, CA. IRS filing data is available from 2021 through 2025. As of 2025, the organization holds $577K in total assets. In 2025, it awarded 3 grants totaling $49K. Net investment income was $62K.
Leadership & Key People
Officers and directors from IRS filings
Sierra Foothills Audubon Society is led by Rudy Darling, President on every filing since 2021; none of the 11 officers listed in 2025 report compensation.
Officers on the 2025 filing
Rudy Darling
President
On filings since 2021
2 hrs/week
No compensation reported
Dale Rubach
Board Member
On filings since 2021
1 hr/week
No compensation reported
Don Rivenes
Treasurer
On filings since 2021
4 hrs/week
No compensation reported
Heath Wakelee
Board Member
On filings since 2021
1 hr/week
No compensation reported
Patti Deluca
Secretary
On filings since 2021
1 hr/week
No compensation reported
Steve Rose
Board Member
On filings since 2021
2 hrs/week
No compensation reported
Theresa Thomas
Board Member
On filings since 2021
1 hr/week
No compensation reported
Diane Rose
Board Member
On filings since 2023
1 hr/week
No compensation reported
Cat Raymond
Board Member
On filings since 2024
1 hr/week
No compensation reported
Leslie Warren
Board Member
New on the 2025 filing
1 hr/week
No compensation reported
Sarah Roeske
Board Member
New on the 2025 filing
1 hr/week
No compensation reported
Former officers (5)
- Former: Jane Hall (2021–2024) — Board Member
- Former: Will Hall (2021–2024) — Vice President
- Former: Jean Matsuno (2023) — Board Member
- Former: Dan Stewart (2021) — Board Member
- Former: Jim Groeser (2021) — Board Member
Data from IRS Form 990 filings, 2021–2025. "On filings since" is the earliest filing we hold that lists the person; hours are average hours per week as reported.
Frequently asked questions about Sierra Foothills Audubon Society
How much does Sierra Foothills Audubon Society give each year?
Sierra Foothills Audubon Society gave $49K across 3 grants in 2025, according to its 2025 IRS Form 990. In 2024 it reported $52K in grants paid.
What is Sierra Foothills Audubon Society's typical grant size?
Sierra Foothills Audubon Society's median grant in 2025 was $12,500, and its average grant was $16,481, across 3 grants on its 2025 IRS Form 990.
Where does Sierra Foothills Audubon Society give grants?
Sierra Foothills Audubon Society gives mostly in California: 100% of the grant dollars itemized on its 2025 IRS Form 990 went to recipients there.
How large is Sierra Foothills Audubon Society?
Sierra Foothills Audubon Society reported $577K in total assets on its 2025 IRS Form 990. Its revenue that year was $84K.
What is Sierra Foothills Audubon Society's EIN?
Sierra Foothills Audubon Society's EIN (Employer Identification Number) is 94-2770544. IRS Form 990 filing data is available on this page for 2021–2025.
Data last updated September 2026. Sourced from IRS Form 990 filings.
Data update history
(4)
When this profile's IRS filing data changed on Grantable
- Updated Form 990 for fiscal year 2023 (received by the IRS November 9, 2023)
- Updated Form 990 for fiscal year 2024 (received by the IRS October 3, 2024)
- Updated Form 990 for fiscal year 2025 (received by the IRS September 3, 2025)
- IRS filings on file for fiscal years 2021–2025
Other open foundation grants in California
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Figures come from Sierra Foothills Audubon Society's IRS filings (methodology). AI-written summaries, news items and logos are not covered by the open licence. Spot an error? Email hello@grantable.co.
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