Bird Profile
Rose-breasted Grosbeak
For about two weeks each spring, a black and white bird with a rose-red chest and an oversized pale bill can appear on a sunflower feeder anywhere in the eastern half of the continent. Being ready for that window is the whole game.
The short answer
- The breeding male is unmistakable: black hood and back, white underparts, and a triangular rose-red bib, with a heavy pale ivory bill.
- The female looks like an oversized streaked sparrow with a bold white eyebrow and the same huge pale bill. She is the bird most often misidentified in May.
- Sunflower seed on a surface the bird can stand on is all it takes. They rarely bother with narrow tube perches.
- In most yards the feeder window is short: roughly two weeks in spring migration and a briefer pass in fall, unless you live inside the breeding range.
- The male sings from the nest while incubating, which is unusual, and the song sounds like a slower, sweeter American Robin.
At a glance
- Scientific name
- Pheucticus ludovicianus
- Length
- 7.1 to 8.3 in (18 to 21 cm)
- Wingspan
- 11.4 to 13.0 in (29 to 33 cm)
- Weight
- 1.4 to 1.7 oz (39 to 49 g)
- Range
- Breeds in the Northeast, upper Midwest, Appalachians and across Canada. Winters from Mexico to northern South America.
- Favorite foods
- Black oil sunflower, sunflower hearts, safflower, fruit
- Best feeder
- Hopper, platform, or a tube with a wide perch
- At feeders
- Late April into May, and again in September and October
The Rose-breasted Grosbeak (Pheucticus ludovicianus) is a chunky, thick-billed songbird about 8 inches (20 cm) long that turns up at sunflower feeders across the eastern half of the continent during spring migration. The breeding male is black above and white below with a triangular splash of rose red across the chest and a bill the color of old ivory. He is one of the best sights available at a North American feeder, and he is usually available for about two weeks.
Getting one is not difficult. It requires sunflower seed, a feeder with a surface a heavy bird can stand on, and being ready during the right fortnight for your latitude.
This profile covers identifying both sexes, when to expect them where you live, the feeder setup that holds them, what they do the rest of the year, and why the female is worth learning as carefully as the male.
How to identify a Rose-breasted Grosbeak#
Breeding male: jet black head, back and wings, white underparts and rump, bold white wing patches, and a rose-red triangle running down from the throat. The bill is massive, conical and pale ivory to pinkish white. Overhead in flight the underwing linings flash rose-pink.
Female: brown above and heavily streaked below on a buff background, with a broad white eyebrow, a dark cheek patch, a pale central crown stripe and the same enormous pale bill. Underwing linings are yellow. Think oversized sparrow with a bill that does not belong to it.
First-spring males are a muddle: brown-backed like females, with variable rose or buff on the breast and blotchy black coming in. Expect one confusing bird for every three obvious ones.
Fall birds of both sexes are duller and streakier. Adult males keep the black wings with white patches and show rose-tinged underwings.
Birds it gets confused with#
- Female Purple Finch and female House Finch: far smaller, with a much shorter bill and no white wing patches.
- Northern Cardinal, female: warm tan, crested, with a stout orange-red bill rather than pale ivory.
- Black-headed Grosbeak: the western counterpart, with an orange-cinnamon breast. The two hybridize where their ranges meet on the Great Plains, so plains birds can show intermediate patterns.
- Spotted or streaky sparrows: all have finer bills and none has that pale conical wedge.
Learn the female first
Most reports of a "strange streaky bird with a huge beak" in May are female Rose-breasted Grosbeaks. She often arrives a few days after the males and is easy to write off as a sparrow. Once you know the white eyebrow and the ivory bill, you find her every year.
Song and calls#
The song is a rich, rolling warble, most often described as a robin that has had singing lessons: same phrasing as an American Robin but smoother, sweeter and more continuous.
The call is more useful for finding one. It is a sharp, metallic squeak, exactly like a sneaker skidding on a gym floor. When a grosbeak is moving through the canopy that squeak gives it away long before you see it.
Males sing constantly on arrival, sometimes from an exposed perch, and unusually they also sing while sitting on the nest.
When to expect one in your yard#
Timing varies year to year with weather, and a warm front in late April can push the whole wave through in three days. Treat this as an approximate guide and start watching a week early.
| Region | Spring window | Fall window |
|---|---|---|
| Gulf Coast and Florida | Late March to late April, passing through | Late September to October |
| Ohio Valley and Mid-Atlantic | Last days of April into early May | Mid-September to mid-October |
| Great Lakes and New England | Roughly May 1 to May 20 | September to early October |
| Northern Plains and upper Midwest | Early to mid-May | September |
| Southern Canada | Mid-May to late May | Late August to September |
Birds that nest in your area stay for the summer and visit feeders less as insects and fruit become abundant. Everywhere south of the breeding range, the visit is a stopover: they are refueling and moving on within a few days. Broader stopover strategy is in feeding birds during migration.
The feeder setup that holds a grosbeak#
Nothing exotic is required, but three details matter.
Seed. Black oil sunflower is the default and the bill handles it easily. Sunflower hearts work and produce no mess, and safflower is readily taken, which is convenient if you are already using it to hold off blackbirds. Fruit such as orange halves and grapes gets attention in spring; see fruit for birds.
Feeder type. A hopper feeder with a real ledge or an open platform feeder is ideal. A tube feeder works only if it has a wide perch or a tray, which is one of the few arguments for fitting the tray back on in May.
Placement and water. Migrants stay near cover, so keep the feeder within about 15 feet (4.5 m) of trees or tall shrubs. A bird bath does at least as much work as the seed does in spring, especially moving water.
Put the tray back on for two weeks
If you run short-perch tube feeders year-round to keep grackles off, refit the bottom tray for the first two weeks of May and pull it again afterward. That is the single change most likely to convert a grosbeak flying overhead into a grosbeak sitting on your feeder, and the blackbird cost is limited to a fortnight. Timing guidance is in spring bird feeding.
What they eat away from the feeder#
Roughly half the annual diet is plant material: seeds, buds, flowers and wild fruit including elderberry, blackberry and juneberry. The rest is invertebrates, and grosbeaks eat a wide range of beetles, caterpillars and true bugs gleaned from the canopy.
They have a long-standing reputation among growers for eating Colorado potato beetles, which earned them the old name of potato-bug bird. Nestlings are fed heavily on insects, so a breeding pair works its way through a substantial quantity of caterpillars.
A yard planted with fruiting native plants holds them far better in summer than a feeder does.
Nesting#
Rose-breasted Grosbeaks nest in young deciduous and mixed woodland, forest edges, regrowing clearcuts and shrubby streamsides. The nest is a notably flimsy platform of twigs and stems placed 5 to 20 feet (1.5 to 6 m) up, sometimes thin enough to see the eggs through from below.
Clutches run 3 to 5 pale blue-green eggs with brown spots. Incubation is about 12 to 14 days and both sexes take turns, which is uncommon among songbirds, and the male frequently sings while he sits. Young leave the nest around 9 to 12 days after hatching.
Pairs are single-brooded in the north and sometimes double-brooded farther south. They are also regular hosts for the Brown-headed Cowbird, particularly in fragmented woodland.
Migration is the dangerous part
Grosbeaks move at night and land in unfamiliar suburbs at dawn, which is exactly the situation that produces window collisions. If you are pulling migrants into your yard in May, treat the glass first: external screens, dot patterns or cords on the outside of the pane. The methods that work, and the ones that do not, are in preventing window strikes.
Population and status#
Rose-breasted Grosbeaks are widespread and common within their range, and they benefit from young second-growth woodland, so regrowing farmland in the Northeast has been good for them. Continental surveys nonetheless show a slow, steady decline over recent decades.
The pressures are the familiar ones for a long-distance migrant: loss of wintering habitat from Mexico to northern South America, fragmentation of northern breeding forest, and collision mortality during migration. None of that makes the species scarce yet, and none of it is visible from a backyard in May.
How to get one this spring#
- Start watching a week before the window for your region and keep the feeders full through it.
- Fill a hopper or platform with black oil sunflower, and refit the tray on your tube feeder for two weeks.
- Put out an orange half or a small dish of grapes when the first males arrive, which also serves the Baltimore Orioles moving through at the same time.
- Keep a bird bath clean and full, with moving water if you can manage it.
- Treat your windows before the wave rather than after the first strike.
- Learn the squeak call. You will hear a grosbeak overhead far more often than you will see one land.
Frequently asked questions#
When do rose-breasted grosbeaks arrive at feeders?
In most of the eastern US, from the last week of April through mid-May, working north as spring advances. Gulf Coast states see migrants passing from late March, the Ohio Valley and Mid-Atlantic from around the last days of April, the Great Lakes and New England in the first half of May, and southern Canada from mid-May. Fall movement runs from late August through October and is quieter.
What do rose-breasted grosbeaks eat at feeders?
Black oil sunflower first, then sunflower hearts and safflower. That heavy pale bill cracks a sunflower shell without effort. They will also take peanut pieces, fruit such as orange halves and grapes, and occasionally suet. Away from feeders, roughly half the diet is seeds and buds and the rest is insects and wild fruit.
What kind of feeder do rose-breasted grosbeaks use?
Anything with a surface to stand on. A hopper feeder with a real ledge, an open platform, or a tube with a wide perch or tray attached all work. They are heavy-bodied, roughly cardinal-sized, and mostly ignore short tube perches. Position the feeder within about 15 feet (4.5 m) of trees, since migrants stay near cover.
What does a female rose-breasted grosbeak look like?
Brown and heavily streaked below, with a broad white eyebrow, a dark cheek, streaked crown stripes, and a very large pale pinkish bill. In flight the wing linings are yellow, where the male's are rose-pink. She is much larger and heavier-billed than any sparrow or female Purple Finch.
Are rose-breasted grosbeaks rare?
No, but they are seasonal and easy to miss. They are common breeders in northern deciduous and mixed woods and pass through the rest of the East twice a year. Continental surveys show a slow long-term decline, tied to forest loss on the wintering grounds and to collisions during migration, but the species remains widespread.
Do rose-breasted grosbeaks come back to the same feeder?
Individual birds are strongly faithful to breeding territories, so a pair nesting nearby often returns to the same yard year after year. Passing migrants are a different matter: your yard is one stopover among many, and the birds you see in May are probably not the same ones you saw last May.