What bird is singing? How to identify a bird by its song

Start by asking four questions about the sound: is it high or low, is it fast or slow, does the bird repeat itself, and is the voice a whistle, a trill, a buzz or a flute? Then add the clock, the calendar and the place. Most singing is done by males, at dawn, in spring and early summer, and a marsh, a lawn and a pine forest each have their own cast. With those clues and ten common songs memorized, you can name most of what sings in an American yard. A sound-ID app on your phone handles the rest.

Listen for four things

Every bird song is built from the same parts, and naming a bird by ear is mostly a matter of noticing them one at a time instead of hearing a blur. Audubon's advice for beginners is to describe the sound to yourself, draw it, or write it down. These are the four things worth describing.

• Pitch. Is the song high and thin or low and full? Does it rise, fall or stay flat? A Red-winged Blackbird's o-ka-leeee climbs. A Western Meadowlark's phrases usually slide down the scale. A Dark-eyed Junco holds one pitch for its whole trill.
• Rhythm. Fast or slow, short phrases or one long run. An American Robin sings in separate phrases that rise and fall. A Gray Catbird runs everything together with no pauses at all.
• Repetition. Count how many times a phrase comes back before the bird changes it. This one clue sorts out the three eastern mimics: a Northern Mockingbird repeats each phrase three or more times, a Brown Thrasher says things twice, and a catbird jumbles its phrases together without the repeats.
• Tone quality. Is the voice a clear whistle (cardinal, titmouse), a dry trill (junco), a buzz (Spotted Towhee, or the zeee that ends a House Finch song), or something flute-like and gurgling (Western Meadowlark)? Harsh, metallic, liquid: any word that fits is fair, and your own words are the ones you will remember.

Mnemonics work on the same principle. Birders hear who cooks for you in a Barred Owl, tea-kettle, tea-kettle in a Carolina Wren and Peter-Peter-Peter in a Tufted Titmouse, not because the birds say those words but because a phrase with the right rhythm and accent sticks. Invent your own when the published one does not land.

Then check the clock, the calendar and the map

Songs and calls are different things. A song is the longer, patterned performance a bird uses to claim territory and attract a mate. A call is short and does jobs like alarm and keeping a flock together. In the United States nearly all singing is done by males, mostly in the breeding season, which is why spring and early summer are loud and late summer is quiet. There are exceptions worth knowing: a Carolina Wren sings all day in every season, and a female Northern Cardinal sings in spring before nesting begins.

Time of day narrows it further. Many birds sing hardest at dawn and dusk, when cooler, calmer air carries sound farther. Robins are among the first voices, often before first light. Eastern Wood-Pewees keep going late into the evening after most songbirds have stopped, and owls and nightjars take over after dark.

Habitat is the last filter. A rising, gurgling song from a cattail marsh is a Red-winged Blackbird before you even look. A long buzzy trill from western chaparral is a Spotted Towhee, and the scratching in the leaf litter underneath it is the same bird. Brown Thrashers sing from the top of a tall tree; catbirds sing from inside a bush. The National Park Service's tip for finding birds applies to hearing them too: stand where two habitats meet, such as a wood edge against a meadow.

The ten songs to learn first

You do not have to learn them all. Ten common songs cover most of what a yard east of the Great Plains produces on a spring morning, and once they are familiar, anything unfamiliar stands out on its own.

West of the Plains the cast changes, though robins, Song Sparrows, Red-winged Blackbirds and Mourning Doves sound the same coast to coast. Add the House Finch, a long warble that ends in a buzzy zeee; the Spotted Towhee, whose buzzy cheweeeee comes from chaparral and brushy slopes; the Western Meadowlark, a flute-like gurgle from open grassland; and the Dark-eyed Junco, a metallic trill on one pitch from conifer edges.

How to use a sound-ID app well

Apps that identify birds by sound have changed birding by ear, and the National Park Service now lists them among the basic tools for a beginner. They work best when you help them hear.

• Get as close as you can without disturbing the bird, then stop walking. Footsteps and a rustling jacket are louder to a microphone than they are to you.
• Keep the microphone clear of your hand and your pocket.
• Hold still and stay quiet for a full phrase or two. The Cornell Lab's guide for its own Sound ID says to record for at least 30 seconds when the bird cooperates; one chip note is not much to go on.
• Expect an honest shrug in wind or traffic. Background noise is what turns a clear answer into a maybe. Wait for a lull, or put a building or a hedge between you and the road.
• Check the answer against the map and the calendar. A suggestion that does not occur in your state in that month deserves a second listen, whichever app made it.

One more rule: do not play recordings at a bird to draw it closer. Playback is typically illegal in national parks, and poor manners everywhere else.

Put it together in the yard

Pick two or three songs you hear every day and learn those first, watching the bird sing when you can, because the picture helps the sound stick. When something new turns up, run the list: pitch, rhythm, repetition, tone, then time and place. If you are still stuck, open Warble, hold the phone toward the singer and let it listen through a whole phrase. It names the bird while it sings and adds the species to your album, and if the wind is up it will say it is not sure rather than guess.

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Questions people ask

Warble is a game, not a field guide. Where this page states a fact about a bird, it comes from the sources above.