Pick 01
Cornell Lab of OrnithologyNo photoThe thing to give before you spend any money at all
Cornell Lab of Ornithology Merlin Bird ID (free app)
Free, from Cornell, and better at identifying a bird by its song than any book will ever be. We earn nothing from it and it belongs at the top of the list anyway.
- Score
- 8.9
- Usefulness
- 10.0
- Authority
- 10.0
- Cost
- 10.0
- Gift appeal
- 3.0
- Budget band
- Under $25
Not sold on Amazon. We are not in Cornell Lab's affiliate program, so this link earns us nothing.
Published specifications
- Price
- Free. The Cornell Lab of Ornithology publishes it as part of its mission.Source: Merlin Bird ID by the Cornell Lab of Ornithology, read 2026-09-02
- Species coverage
- Identification support, photos, sound recordings, maps and descriptions for more than 10,000 species worldwideSource: Merlin Bird ID by the Cornell Lab of Ornithology, read 2026-09-02
- Sound ID coverage
- 540 species in the US and Canada, 602 in Central and South America, 284 in EuropeSource: Cornell Chronicle, Merlin Bird ID sound identification coverage, news.cornell.edu, read 2026-09-02
- Identification methods
- Photo ID, Sound ID, and a step-by-step question flowSource: Merlin Bird ID by the Cornell Lab of Ornithology, read 2026-09-02
- What it does not do
- Sound ID is not yet available worldwideSource: Cornell Chronicle, Merlin Bird ID sound identification coverage, news.cornell.edu, read 2026-09-02
What it gets right
- Free, from the most authoritative bird organization in North America
- Sound ID answers the question a book cannot: what is singing, out of sight, in that tree
- Works alongside every book on this page rather than replacing them
What it does not
- Needs a phone, charged, in hand — which is the opposite of what some people want from birding
- Sound ID coverage is regional, not global
- It is not a gift you can wrap
Who it is for
Everyone, before they spend anything.
Skip this if
Nothing. Install it first and buy the book anyway. We do not earn a commission on this and it is still the first recommendation on the page.
