What a lifer is
A lifer, also called a life bird, is a bird species you are seeing or identifying for the first time in your life. The bird can be rare or very common. If you have never recorded a Northern Cardinal before, your first cardinal is a lifer, and many birders get just as excited about a common species as a rarity.
The word comes from the idea of a “life list,” a running record of every species you have identified. Each new addition is a lifer.
Can you count a bird you only heard?
Practice varies. Many birders count a species if they confidently identify it by song or call, while others only count birds they have actually seen. There is no single enforced rule for personal lists, so it comes down to what you want your list to mean. Whichever approach you choose, stay consistent, and only count a bird when you are confident of the identification. If you are unsure, a bird-sound app can help you check a song, but treat its suggestion as a clue rather than proof.
Life lists, year lists and yard lists
Birders keep several kinds of lists, and a lifer is relative to the list in question.
- Life list: every species you have identified anywhere, ever.
- Year list: species identified within a calendar year.
- Yard (or patch) list: species seen at your home or a favorite spot. A bird can be a “yard bird” without being a lifer.
- Regional lists: some birders track species by state, county or country, so a bird can be a “state lifer” even if it is not a lifer overall.
Backyard watchers often start with a yard list, since it is easy to keep and shows how your feeder and plantings change who visits.
Armchair lifers
Sometimes scientists divide one species into two. If you had already seen the original bird in the right place, you may be able to add the new species to your list without seeing anything new. Birders call this an “armchair lifer” (or an armchair tick). Whether a bird counts also depends on which checklist you follow, since taxonomy changes over time.
Other common birding terms
| Term | Meaning |
|---|---|
| Bins | Short for binoculars |
| BOP | Bird of prey, often used when you know it is a raptor but not which one |
| Chase | Travel to see a reported bird, usually a rare one |
| Dip | To miss a bird you went looking for |
| Fallout | Weather grounds large numbers of migrating birds in one place |
| Gashawk | A joking name for an airplane mistaken for a bird |
| LBJ | “Little brown job,” a small brown bird that is hard to tell apart |
| Mega or mega-rarity | An exceptionally rare bird for the area |
| Nemesis bird | A bird you keep failing to see, often a fairly common one |
| Patch | A birder’s regular local spot |
| String | To report or claim a bird that was not really there, or to misidentify one hopefully |
| Warbler neck | Neck strain from looking up into the trees for small birds |
Terms vary somewhat by region and by group, so you may hear slightly different uses. If someone uses a word you do not know, most birders are happy to explain.
Twitcher, lister, birder: what is the difference?
Birder is the general word for someone who watches birds for enjoyment. “Birdwatcher” is a close synonym, and many people use them interchangeably, though some prefer “birder” for a more active, identification-focused approach.
Twitcher is a term, especially common in British usage, for a birder who travels to see rare birds, often at short notice. Lister describes someone focused on building and growing their lists. These are informal labels, and people use them both fondly and teasingly. Some use “twitcher” and “lister” almost interchangeably, while others draw a line between the two.
The word “birding” itself usually means the active pursuit of finding and identifying birds, as opposed to simply noticing them.
Is “lifer” used outside birding?
Yes. In everyday English, “lifer” can mean someone who stays in a job or career for their whole working life, or a person serving a life sentence. In some relationship slang it can describe a partner someone expects to be with long term. That is a separate, informal use of the word and has nothing to do with birds. In a birding conversation, it is always about a new species.
Starting your first life list
You do not need special equipment to begin. A notebook, a free app or a printed checklist works. Record the species, date and place. If you want something nicer, a journal or checklist makes a thoughtful present, and our gift ideas for bird watchers include a few options. If you are curious about the signs birds leave behind beyond sightings, our guide to identifying bird footprints and tracks is a good next read.
FAQ
What is a twitcher?
A birder who travels, sometimes far and at short notice, to see rare or new birds. The term is most associated with British birding.
What is another word for birder?
Birdwatcher is the most common alternative. Others include bird enthusiast, ornithology hobbyist, and, more playfully, lister or twitcher for specific styles.
What does birding mean?
Birding is the hobby of finding, watching and identifying birds, whether in your yard, a local park or farther afield.
Does a heard-only bird count as a lifer?
Many birders say yes if the identification is certain, but it is a personal choice. Decide on a rule and apply it consistently.