Free tools and data
Free birding tools and bird data
Birdfolio's free birding tools check, count, share and print your own bird list right in your browser, with no account and nothing uploaded. Our free bird data covers the oldest wild birds, Audubon's birds then and now, bird species by state, state birds, all 435 Audubon plates and US birding festivals, each page with its sources.
Everything here is free to use and free to link to. Two of the data pages come with a CSV file you can download and reuse.
Updated
Free tools for your own bird list
Use the list you already keep: the file your birding app gives you, or your birds typed in by hand. The printable lists are for keeping one on paper.
Splits and lumps checker
Add your bird list and see which of your birds have been split, lumped or renamed since 2018, and what that means for your list.
Free · no account · nothing uploaded
Your birding year in numbers
One year of your own list: your species, new lifers, first bird of the year, best month and biggest day, with a card to share.
Free · no account · nothing uploaded
Make your share picture
A picture of your numbers to post anywhere: your species, years birding, bird families and first bird. No places, no dates, no list.
Add your list on the Make your Birdfolio page, then tap Make my share picture.
Free · no account · nothing uploaded
Print my list
Every bird on your list, with its scientific name and the date you first saw it, ready to print or save as a PDF.
Add your list on the Make your Birdfolio page, then tap Print my list.
Free · no account · nothing uploaded
Printable life list and year list
Blank lists to fill in by hand, one line for each new species with the date and the place. US Letter, two pages.
Free download · no sign-up
Free bird data and reference lists
Tables and lists checked against official and original sources, each linked on its page.
Oldest wild birds
The record age of the oldest known wild bird of each of 719 species, from US government banding records, with today's names.
Free · CSV download
Audubon's birds, then and now
Every bird on Audubon's 435 plates, his name beside today's, and which ones are extinct, mistaken or still a mystery.
Free · CSV download · CC BY 4.0
Bird species by state
The official number of bird species for every US state and Canadian province, from each records committee's own list.
Free · sources linked
State birds
The official bird of every state and the year it was chosen, from each state's own law or website.
Free · sources linked
All 435 Audubon plates
Every plate of The Birds of America (1827–38): Audubon's name for each bird beside today's, with a link to a free scan.
Free · links to free scans
US birding festivals
Birding festivals from November 2026 through 2027, by month and by state, with dates checked on each festival's own website.
Free · dates from each festival
Use and cite
You're welcome to link to any page here from a library guide, a club website or a class page, with no need to ask. If you use a fact or a file, credit “Birdfolio (mybirdfolio.com)” with a link to the page, along with the sources that page lists.
- Audubon's birds, then and now: The CSV file is licensed CC BY 4.0: free to use, share and adapt, with a link to the page as credit. Please credit AviList too: AviList Core Team, AviList: The Global Avian Checklist, v2025b. Suggested citation: Birdfolio, “Audubon's birds, then and now,” October 8, 2026, https://mybirdfolio.com/audubon-birds-then-and-now. Data: https://mybirdfolio.com/downloads/audubon-birds-then-and-now.csv. Today's names: AviList v2025b.
- Oldest wild birds: The CSV file is licensed CC BY 4.0 too. The record ages come from the USGS Bird Banding Laboratory, a US government work. How to cite: USGS Bird Banding Laboratory, North American Bird Banding Program Longevity Records, version 2025.1 (US Geological Survey, Eastern Ecological Science Center, Laurel, Maryland); today's names from Birdfolio's page Oldest wild birds (mybirdfolio.com).
- State birds and the Audubon plates: Today's species names follow AviList Core Team, AviList: The Global Avian Checklist, v2025b, licensed under CC BY 4.0.