Our target
Field Guide aims to meet WCAG 2.2 level AA on current versions of Chrome, Safari, Firefox and Edge, with VoiceOver, TalkBack and NVDA.
What we did
- Every page has one main heading, landmarks and a skip link.
- City search follows the ARIA combobox pattern: arrow keys move through results, Enter picks one, Escape closes the list.
- Filters are standard radio buttons and switches, so they work with a keyboard and screen readers. The radius scale shows the chosen distance by fill and weight, not colour alone.
- Text and controls meet AA contrast in light and dark mode. Focus is always visible.
- Touch targets are at least 44 by 44 pixels, apart from inline text links.
- Motion is limited to small lifts and fades and switches off when your device asks for reduced motion.
- Photos on species pages have text alternatives; photo credits are real text you can select and read aloud.
Known gaps
Photo descriptions are generic (“Milky Stork, 2 of 6”) because iNaturalist photos do not come with descriptions. Wikipedia summaries can contain specialist terms. Some observer names are in scripts our font does not include; they use your system font.
Tell us
If something gets in your way, open an issue at github.com/sg208/fieldguide with the page and what happened.
Last reviewed 3 November 2026