Sierra Foothills Audubon Society logo

Sierra Foothills Audubon Society

Public charity · Grantmaker Grass Valley, CA EIN: 94-2770544 Website

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.

Key facts about Sierra Foothills Audubon Society

In short: Sierra Foothills Audubon Society gave $49K across 3 grants in 2025 (avg $16K), mostly in California. Source: 2025 IRS Form 990.

EIN
94-2770544
Latest 990 filing
Form 990, 2025
Annual giving (2025)
$49,444
Grants made (2025)
3
Average grant
$16,481
Median grant
$12,500
Total assets
$577,389
Primary geography
California (100% of itemized 2025 grant dollars)
Next open deadline
January 31, 2027 (Non-profit Organization Grants)

Data from IRS Form 990, 2025; updated September 2026.

Financial Overview

From 2025 IRS Form 990 · View filing

Total Assets

$577K

+0.6% YoY

Annual Giving

$49K

-5.0% YoY

Grant Count

3

Avg Grant Size

$16K

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.

Open Grants

2 open opportunities from Sierra Foothills Audubon Society

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Geographic Focus

Where this funder awards grants

Grant Distribution by State

1state

Share of 2025 grant dollars across all 3 itemized grants.

States

Cities

AuburnMilpitasPetalumaPoint Reyes StationRocklin

Giving Over Time

Total grant dollars and number of grants per year

$0$20K$40K$60K2 grants2021 Total only2023 Total only2024 3 grants2025

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.

Grant Insights

How this funder distributes its grants

Top Recipients

Top 3 recipients in 2025

Institute for Bird Populations: $31KInstitute for Bird Populations$31KPlacer Nature Center: $13KPlacer Nature Center$13KSan Francisco Bird Observatory: $6KSan Francisco Bird Observatory$6K

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

5<$50K$50–100K$100–250K$250–500K$500K–1M$1–5M$5M+

The most common grant size was under $50K: 5 grants of 5 (100%).

Giving History

Grant recipients and amounts by year

RecipientPurposeAmount
Institute for Bird Populations Petaluma, CABird Studies$31,356
Placer Nature Center Auburn, CA—$12,500
San Francisco Bird Observatory Milpitas, CA—$5,588

Financial History

Multi-year comparison from IRS filings

Revenue
Expenses
Net Investment Income
$0$50K$100K$150K2021 2023 2024 2025
Metric202520242023
Total Assets$577,389$573,779$549,699
Revenue$83,913$93,990$28,087
Expenses$80,303$66,759$67,347
Net Investment Income$62,017$75,165$12,560

Data update history

When this profile's IRS filing data changed on Grantable

  1. Updated Form 990 for fiscal year 2023 (received by the IRS November 9, 2023)
  2. Updated Form 990 for fiscal year 2024 (received by the IRS October 3, 2024)
  3. Updated Form 990 for fiscal year 2025 (received by the IRS September 3, 2025)
  4. IRS filings on file for fiscal years 2021–2025

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.

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