Red Crossbill in September
Where red crossbills are in September, whether they are nesting, and the best foods to offer right now.
September in the Red Crossbill's year
September is the peak of fall migration. Huge numbers of birds move south on cold fronts, mixed flocks form, and summer residents slip away almost unnoticed. Young birds making their first migration appear in places the species rarely visits.
For the Red Crossbill specifically, September is a fall month inside the nesting season — one of the most active and demanding periods of this bird's year. Across the 61 states and provinces where red crossbills occur, what the bird is doing this month depends heavily on latitude — the details below break it down by band.
Where red crossbills are in September
- Southern states
- absent
- Mid-latitudes
- year-round resident
- Northern states & Canada
- absent
In September, red crossbills are absent in the South, year-round resident across the mid-latitudes, and absent in the northern states and Canada. That north–south split is the defining feature of this month: where you live changes which version of this bird you're looking at.
Nesting in September
September is inside the Red Crossbill nesting season. Nest: cup on a conifer branch; can nest in any month when cones are ripe. Clutch 2–5 eggs, incubation 12–16 days, 1–2 per season.
The season is broadly synchronized across the range this month. During the nesting months, adults switch to protein-rich foods for their young, become more secretive around the nest site, and often visit feeders in quick, purposeful trips rather than lingering.
What to feed in September
- Spruce, pine and fir seeds
Nomadic — appears when cone crops fail elsewhere, empties sunflower feeders, then vanishes for years.
Migrants passing through may stop at feeders for a day and never return — September rewards watching closely. Natural seed and fruit crops are abundant, so feeder traffic can be uneven.
Full Red Crossbill diet guide → · Best feeder for red crossbills →
Watching red crossbills this month
In September, the best watching is around food rather than the nest — adults make repeated foraging trips and are most visible at dawn and dusk. Give nesting birds space: if a bird is carrying food or scolding you persistently, you're close to a nest and should back off.
The state guides below show exactly where in your region red crossbills are expected this month and which native plants hold them in a yard.
Red Crossbill month by month
Red Crossbill by state
Frequently asked
Where are red crossbills in September?
In September, red crossbills are absent in the South, year-round resident across mid-latitudes and absent in the North.
Do red crossbills nest in September?
Yes — September falls inside the Red Crossbill nesting season at mid-latitudes.
What do red crossbills eat in September?
Spruce, pine and fir seeds.
Sources
- Red Crossbill — All About Birds, Cornell Lab of Ornithology
- Red Crossbill life history — Cornell Lab of Ornithology
- Red Crossbill — Audubon Guide to North American Birds
Timing reflects typical patterns for the region as a whole; local dates vary with elevation and year. Check the linked eBird bar charts for your county.