Civic Intelligence

Hallberg Butterfly Gardens

EIN 91-1767178 • 501(c)3 • Sebastopol, CA

Profile

Foster the breeding, propagation, protection, preservation and scientific study of the lepidoptera order by operation of one or more experimental butterfly habitats. Provide education and information centers.

8687 Oak Grove AveSebastopol, CA 95472

www.hallbergbutterflygardens.org

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

23rd percentile

0.00x

Higher debt load relative to assets than 23% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2024

Liabilities / Revenue

40th percentile

0.04x

Higher debt load relative to revenue than 40% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2024

Net Margin

7th percentile

-46%

Higher net margin than 7% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2024

Top Officer Pay

40th percentile

$0

Higher top officer pay than 40% of similar nonprofits.

Top officer pay equals 0.0% of source-year revenue.

501(c)3 • $1M-$5M nonprofits • Source year 2024

Asset Growth

59th percentile

6.8%

Faster asset growth than 59% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2023 to 2024

Revenue Growth

92nd percentile

112%

Faster revenue growth than 92% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2023 to 2024

Balance Sheet
Liabilities / Assets23rd percentile

Assets

Up

$1,914,475

Up $122,019 (+6.8%) from 2023

Liabilities

Up

$2,923

Up $556 (+23%) from 2023

Net Assets

Up

$1,911,552

Up $121,463 (+6.8%) from 2023

Operations
Liabilities / Revenue40th percentileNet Margin7th percentile

Revenue

Up

$80,501

Up $42,503 (+112%) from 2023

Expenses

Down

$117,530

Down $6,721 (-5.4%) from 2023

Net Income

Up

-$37,029

Up $49,224 (+57%) from 2023

Trend Graphs

Balance Sheet Trend

Asset Growth59th percentile

Grouped bars show assets, liabilities, and net assets across loaded filings.

$3.0M$2.0M$1.0M$0Assets 2010: $89,040Net Assets 2010: $89,0402010Assets 2011: $95,416Net Assets 2011: $95,4162011Assets 2012: $99,639Liabilities 2012: $1,310Net Assets 2012: $98,3292012Assets 2013: $102,383Liabilities 2013: $8852013Assets 2014: $103,561Liabilities 2014: $449Net Assets 2014: $103,1122014Assets 2015: $115,273Liabilities 2015: $715Net Assets 2015: $114,5582015Assets 2016: $128,473Liabilities 2016: $658Net Assets 2016: $127,8152016Assets 2017: $1,231,558Liabilities 2017: $123,440Net Assets 2017: $1,108,1182017Assets 2018: $1,696,351Liabilities 2018: $102,193Net Assets 2018: $1,594,1582018Assets 2019: $1,796,329Liabilities 2019: $63,417Net Assets 2019: $1,732,9122019Assets 2020: $1,857,682Liabilities 2020: $23,540Net Assets 2020: $1,834,1422020Assets 2021: $2,000,742Liabilities 2021: $961Net Assets 2021: $1,999,7812021Assets 2022: $1,720,950Liabilities 2022: $2,339Net Assets 2022: $1,718,6112022Assets 2023: $1,792,456Liabilities 2023: $2,367Net Assets 2023: $1,790,0892023Assets 2024: $1,914,475Liabilities 2024: $2,923Net Assets 2024: $1,911,5522024

Highlighted filing

2024

Assets$1,914,475
Liabilities$2,923
Net Assets$1,911,552
Open 2024 Filing

Operations Trend

Revenue Growth92nd percentile

Revenue, expenses, and net income by year, with the latest filing highlighted.

$1.0M$500K$0-$500KRevenue 2010: $29,336Expenses 2010: $25,159Net Income 2010: $4,1772010Revenue 2011: $30,367Expenses 2011: $24,934Net Income 2011: $5,4332011Revenue 2012: $31,110Expenses 2012: $28,242Net Income 2012: $2,8682012Revenue 2013: $29,352Expenses 2013: $27,769Net Income 2013: $1,5832013Revenue 2014: $26,210Expenses 2014: $22,666Net Income 2014: $3,5442014Revenue 2015: $37,982Expenses 2015: $24,018Net Income 2015: $13,9642015Revenue 2016: $35,974Expenses 2016: $27,888Net Income 2016: $8,0862016Revenue 2017: $997,367Expenses 2017: $39,647Net Income 2017: $957,7202017Revenue 2018: $106,408Expenses 2018: $60,590Net Income 2018: $45,8182018Revenue 2019: $94,553Expenses 2019: $83,011Net Income 2019: $11,5422019Revenue 2020: $90,142Expenses 2020: $96,965Net Income 2020: -$6,8232020Revenue 2021: $216,657Expenses 2021: $89,783Net Income 2021: $126,8742021Revenue 2022: $123,859Expenses 2022: $107,270Net Income 2022: $16,5892022Revenue 2023: $37,998Expenses 2023: $124,251Net Income 2023: -$86,2532023Revenue 2024: $80,501Expenses 2024: $117,530Net Income 2024: -$37,0292024

Highlighted filing

2024

Revenue$80,501
Expenses$117,530
Net Income-$37,029
Open 2024 Filing

Filings

Most recent year

2024 • Form 990Facts available. Structured filing facts are available, but richer extracted sections are limited.

Open filing
Assets
$1,914,475
Liabilities
$2,923
Net assets
$1,911,552
Revenue
$80,501
Expenses
$117,530
Net income
-$37,029
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2024Facts available. Structured filing facts are available, but richer extracted sections are limited.$1.91$0.00$1.91$0.08$0.12$0.04
2023Summary only. Only limited summary data is available for this year.$1.79$0.00$1.79$0.04$0.12$0.09
2022Summary only. Only limited summary data is available for this year.$1.72$0.00$1.72$0.12$0.11$0.02
2021XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$2.00$0.00$2.00$0.22$0.09$0.13
2020Facts available. Structured filing facts are available, but richer extracted sections are limited.$1.86$0.02$1.83$0.09$0.10$0.01
2019Summary only. Only limited summary data is available for this year.$1.80$0.06$1.73$0.09$0.08$0.01
2018XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$1.70$0.10$1.59$0.11$0.06$0.05
2017XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$1.23$0.12$1.11$1.00$0.04$0.96
2016XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$0.13$0.00$0.13$0.04$0.03$0.01
2015XML pending. An XML filing is linked for this year, but detailed extraction is still pending.$0.12$0.00$0.11$0.04$0.02$0.01
2014Detailed filing. Detailed filing data is available for this year.$0.10$0.00$0.10$0.03$0.02$0.00
2013Summary only. Only limited summary data is available for this year.$0.10$0.00$0.03$0.03$0.00
2012Facts available. Structured filing facts are available, but richer extracted sections are limited.$0.10$0.00$0.10$0.03$0.03$0.00
2011Facts available. Structured filing facts are available, but richer extracted sections are limited.$0.10$0.10$0.03$0.02$0.01
2010Facts available. Structured filing facts are available, but richer extracted sections are limited.$0.09$0.09$0.03$0.03$0.00
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2024 to Dec 31, 2024
Signed
May 15, 2025
Return Version
2024v5.1
Gross Receipts
$82,642
Mission and Program Overview

Mission

Foster the breeding, propagation, protection, preservation and scientific study of the lepidoptera order by operation of one or more experimental butterfly habitats. Provide education and information centers.

Balance Sheet Detail
LineBeginningEndChange
Assets
Investments in Publicly Traded Securities$990,825$1,070,539▲ $79,714
Land, Buildings, and Equipment, Net$772,921$760,806▼ $12,115
Savings and Temporary Cash Investments$2,212$45,846▲ $43,634
Cash and Non-Interest-Bearing Accounts$24,577$35,362▲ $10,785
Inventories for Sale or Use$1,010$1,010→ $0
Prepaid Expenses and Deferred Charges$911$911→ $0
Accounts Receivable-$0-
Other Notes and Loans Receivable, Net-$0-
Pledges and Grants Receivable-$0-
Receivable From Disqualified Prsn-$0-
Receivables From Officers Etc-$0-
Investments Other Securities-$0-
Investments Program Related-$0-
Intangible Assets-$0-
Total Assets$1,792,456$1,914,475▲ $122,019
Other Assets Total-$1-
Liabilities
Accounts Payable and Accrued Expenses$2,366$2,923▲ $557
Other Liabilities$1--
Total Liabilities$2,367$2,923▲ $556
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$1,790,089$1,911,552▲ $121,463
Total Net Assets Fund Balance$1,790,089$1,911,552▲ $121,463
Total Liabilities and Net Assets / Fund Balance$1,792,456$1,914,475▲ $122,019

Asset Categories

AssetBook ValueDepreciationBasis
Land$529,710-$529,710
Buildings$228,740$77,260$306,000
Leasehold Improvements$879$18,312$19,191
Other Land Buildings$1,477$4,029$5,506
Compensation and Service Providers
Top Officer Pay40th percentile

Board Members and Trustees

NameTitle
Don MahoneyPresident
Jo BentzDirector
Kathy JacobsDirector
Kathy TraftonSecretary
Leah BrorstromTreasurer
Revenue and Support

Revenue Composition

Contributions and Grants
$16,908
Program Service Revenue
$0
Investment Income
$46,990
Other Revenue
$16,603
All Other Contributions
$15,458
Change in Net Assets
$-37,029
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Salaries, Compensation, and Employee Benefits$69,422
Other Expenses$48,108
Grants and Similar Amounts Paid$0
Professional Fundraising Fees$0
Total Fundraising Expense$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Other Salaries and Wages$57,946$6,439-$64,385
Depreciation Depletion$12,115--$12,115
Insurance-$6,489-$6,489
All Other Expenses$4,328$1,845-$6,173
Fees for Services Accounting-$5,075-$5,075
Payroll Taxes$4,533$504-$5,037
Fees for Services Other$600$2,225-$2,825
Other Expenses$1,755$1,129-$1,755
Information Technology-$1,099-$1,099
Advertising-$966-$966
Office Expenses-$930-$930
Total Functional Expenses$88,193$29,337$0$117,530
Fundraising, Events, and Gaming
Fundraising activities
No
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Professional Fundraising Fees$0
Political and Lobbying Activity
Political campaign activity
No
Lobbying activity
No
Subject to proxy tax
No
Insider Transactions and Loans

Loans and Receivables

Line ItemBeginningEndChange
Receivables from Disqualified Persons-$0-
Receivables from Officers, Directors, Trustees, and Key Employees-$0-
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
No
Annual disclosure for covered persons
Yes
Backup withholding compliance
Yes
Business relationship with 35% controlled entity
No
Business relationship with family members
No
Business relationship with organization members
No
Material changes to governing documents
No
Compensation from other sources disclosed
No
CEO compensation reviewed
No
Other officer compensation reviewed
No
Conflict-of-interest policy
Yes
Audited financial statements prepared
No
Key decisions subject to board approval
No
Management duties delegated
No

Governance Explanations

Form 990, Part VI, Section B, Line 11B

“President of board meets with accountant and reviews the 990 before filing.”

Form 990, Part VI, Section B, Line 12C

“Article 9.5 of bylaws states that corporation shall annually prepare and furnish to each director a statement of any transaction in which an interested person had a direct or indirect material financial interest which involved more than $50,000 or was a number of transactions with the same interested person involving in the aggregate more than $50,000.an interested person is any director or officer of the corporation and any holder of more than 10% of the voting power.the statement includes a brief description of the transaction, names of interested persons involved, relationship to the corporation & nature of interest in the transaction.”

Form 990, Part VI, Section C, Line 19

“Required copy of form 990 and schedule b sent to ca registry of charitable trusts where it is available on their website.financial statements by request.”

Filing and Contact Details

Filer

Filer Name
Hallberg Butterfly Gardens
EIN
91-1767178
Phone
7078233420
Address
8687 OAK GROVE AVE, SEBASTOPOL, CA 95472

Signing Officer

Name
Leah Brorstrom
Title
Treasurer
Signed
2025-05-15
Discuss with paid preparer
Yes

Organization Details

Principal Officer
Don Mahoney
Formed
1997
Legal Domicile
CA
Voting Board Members
5
Independent Board Members
5
Employees
1
Volunteers
90

Preparer

Firm
Ann M Carinalli CPAInc
Address
342 S Main Street, Sebastopol, CA 95472
Preparer
Ann Marie Carinalli
Phone
7078244444
Raw XML Appendix399 raw XML fields

This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.

Path#Value
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IRS990/Desc0THE PROGRAM IS FOR THE PRESERVATION AND ENHANCEMENT OF BUTTERFLY HABITAT. THE GARDENS HOSTED REGULAR VOLUNTEERS EVERY TUESDAY AND THE LAST SATURDAY OF THE MONTH. THERE WERE 72 VOLUNTEERS DURING THE YEAR WHO PUT IN A TOTAL OF OVER 353 HOURS. WORK INCLUDED TRAIL MAINTENANCE, PROPAGATION OF NATIVE AND HABITAT FRIENDLY PLANTS FOR THE GARDENS AND PLANT SALES, AND INVASIVE PLANT REMOVAL. VOLUNTEERS ALSO WORKED ON ENHANCEMENT & EXPANSION OF THE GARDEN'S MILKWEED PATCHES & NECTAR SOURCES FOR THE MONARCH HABITAT PATCH. THE MONARCH HABITAT PATCH IS INCLUDED IN THE ONGOING RESEARCH PROJECT HEADED BY THE NON-PROFIT, POLLINATOR PARTNERSHIP. THIS GROUP STUDIES THE PHENOLOGY OF THE MONARCH BUTTERFLY IN CALIFORNIA.ALSO A GRANT WAS RECEIVED FROM THE XERCES SOCIETY FOR PLANTS TO BE PLANTED IN THE MONARCH PATCH.
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IRS990/EmployeeCnt01
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IRS990/ForeignOfficeInd0false
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IRS990/Form990PartVIISectionAGrp/TitleTxt4Director
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IRS990/ProgSrvcAccomActy2Grp/Desc0THE HALLBERG BUTTERFLY GARDENS OFFERED THE FOLLOWING ACTIVITES DURING THE YEAR.SELF-GUIDED TOURS WERE OFFERED BY APPOINTMENT SPRING THROUGH FALL. THERE WERE 1,007 PEOPLE WHO CAME AND TOURED THE GARDENS INCLUDING 648 CHILDREN FROM LOCAL SCHOOLS. 728 BUTTERFLIES FROM 24 DIFFERENT SPECIES WERE IDENTIFIED BY GUESTS AND VOLUNTEERS WHO CAME TO THE GARDENS.THE GARDENS HELD ITS 5TH ANNUAL MOTH NIGHT IN JULY TO CELEBRATE NATIONAL MOTH WEEK.32 PEOPLE CAME TO LEARN THE IMPORTANCE OF MOTHS IN THE ECOSYSTEMS. THROUGHOUT THE EVENING THE PARTICIPANTS HELPED TO DOCUMENT AND ID THE MOTHS FOUND IN THE GARDENS AT 2 UV LIGHT STATIONS USED TO ATTRACT MOTHS AND OTHER INSECTS. THERE WERE 67 OBSERVATIONS FROM 34 DIFFERENT SPECIES OF MOTHS, BEETLES AND FLIES.EVERY FIRST SUNDAY OF THE MONTH GUESTS WERE INVITED TO DRAW AND PAINT OBSERVATIONS IN THE GARDENS.
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IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt0PRESIDENT OF BOARD MEETS WITH ACCOUNTANT AND REVIEWS THE 990 BEFORE FILING.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt1ARTICLE 9.5 OF BYLAWS STATES THAT CORPORATION SHALL ANNUALLY PREPARE AND FURNISH TO EACH DIRECTOR A STATEMENT OF ANY TRANSACTION IN WHICH AN INTERESTED PERSON HAD A DIRECT OR INDIRECT MATERIAL FINANCIAL INTEREST WHICH INVOLVED MORE THAN $50,000 OR WAS A NUMBER OF TRANSACTIONS WITH THE SAME INTERESTED PERSON INVOLVING IN THE AGGREGATE MORE THAN $50,000.AN INTERESTED PERSON IS ANY DIRECTOR OR OFFICER OF THE CORPORATION AND ANY HOLDER OF MORE THAN 10% OF THE VOTING POWER.THE STATEMENT INCLUDES A BRIEF DESCRIPTION OF THE TRANSACTION, NAMES OF INTERESTED PERSONS INVOLVED, RELATIONSHIP TO THE CORPORATION & NATURE OF INTEREST IN THE TRANSACTION.
IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt2REQUIRED COPY OF FORM 990 AND SCHEDULE B SENT TO CA REGISTRY OF CHARITABLE TRUSTS WHERE IT IS AVAILABLE ON THEIR WEBSITE.FINANCIAL STATEMENTS BY REQUEST.
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc0Form 990, Part VI, Section B, Line 11b
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc1Form 990, Part VI, Section B, Line 12c
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc2Form 990, Part VI, Section C, Line 19
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IRS990/UnrelatedBusIncmOverLimitInd0false
IRS990/UponRequestInd0X
IRS990/USAddress/AddressLine1Txt08687 OAK GROVE AVE
IRS990/USAddress/CityNm0SEBASTOPOL
IRS990/USAddress/StateAbbreviationCd0CA
IRS990/USAddress/ZIPCd095472
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IRS990/WebsiteAddressTxt0www.hallbergbutterflygardens.org
IRS990/WhistleblowerPolicyInd0false
ReturnHeader/BuildTS02025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd0true
ReturnHeader/BusinessOfficerGrp/PersonNm0LEAH BRORSTROM
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt0Treasurer
ReturnHeader/BusinessOfficerGrp/SignatureDt02025-05-15
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt0HALLBERG BUTTERFLY GARDENS
ReturnHeader/Filer/BusinessNameControlTxt0HALL
ReturnHeader/Filer/EIN0911767178
ReturnHeader/Filer/PhoneNum07078233420
ReturnHeader/Filer/USAddress/AddressLine1Txt08687 OAK GROVE AVE
ReturnHeader/Filer/USAddress/CityNm0SEBASTOPOL
ReturnHeader/Filer/USAddress/StateAbbreviationCd0CA
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ReturnHeader/IRSResponsiblePrtyInfoCurrInd0true
ReturnHeader/PreparerFirmGrp/PreparerFirmEIN0462003971
ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt0Ann M Carinalli CPAInc
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt0342 S Main Street
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm0Sebastopol
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd0CA
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd095472
ReturnHeader/PreparerPersonGrp/PhoneNum07078244444
ReturnHeader/PreparerPersonGrp/PreparerPersonNm0Ann Marie Carinalli
ReturnHeader/ReturnTs02025-05-15T08:25:49-07:00
ReturnHeader/ReturnTypeCd0990
ReturnHeader/TaxPeriodBeginDt02024-01-01
ReturnHeader/TaxPeriodEndDt02024-12-31
ReturnHeader/TaxYr02024

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