Yellow-headed Blackbirds in Colorado
When yellow-headed blackbirds are present in Colorado, when they nest, which native Colorado plants feed them, and how to host them in a USDA 3a–7b yard.
- Status in Colorado
- Summer breeder
- Nesting window
- May–July
- Broods
- 1 per season
- Hardiness zones
- USDA 3a–7b
When to expect yellow-headed blackbirds in Colorado
Yellow-headed Blackbirds are summer residents in Colorado, arriving shortly before nesting begins in May and leaving after the young are independent.
Semi-arid high plains in the east and the Rocky Mountains through the center, with most backyards between 5,000 and 7,000 ft.
Nesting in Colorado
Across Colorado, yellow-headed blackbirds typically nest from May–July. Plan around that window: April for setup, July for clean-out.
Warm, dry days and cool nights; afternoon storms are common in July and August.
- Yellow-headed Blackbirds don't use nest boxes. Keep dense native shrubs and trees such as chokecherry, ponderosa pine for nest sites.
- Delay heavy pruning of shrubs until after July.
Native Colorado plants that attract yellow-headed blackbirds
Of the regional native plants we track for Colorado, these 8 provide food or cover yellow-headed blackbirds use:
Tubular flowers for hummingbirds and seed heads for finches.
Prolific seed heads for finches and sparrows.
Annual native sunflower — the original feeder seed.
Late nectar for insects and fall seed for sparrows.
Native bunchgrass; winter seed and ground cover for sparrows and juncos.
Insect-rich in fall and seed in winter.
Dark summer fruit and heavy caterpillar load.
Seeds and bark insects; pygmy nuthatch and woodpecker habitat.
Feeding yellow-headed blackbirds through the Colorado year
- Top foods: Cracked corn, Millet.
- In Colorado's summer: offer water and insect foods; natural food is abundant.
Full diet breakdown for yellow-headed blackbirds · Best feeder for yellow-headed blackbirds
Frequently asked
Are yellow-headed blackbirds in Colorado year-round?
No. Yellow-headed Blackbirds are summer breeders in Colorado and leave for the winter.
When do yellow-headed blackbirds nest in Colorado?
Nesting in Colorado typically runs May–July, with 1 per season. Clutches are 2–6 eggs, incubated for 11–13 days.
What native plants attract yellow-headed blackbirds in Colorado?
Wild bergamot, Black-eyed Susan, Common sunflower, New England aster, Little bluestem, Tall goldenrod, Chokecherry, Ponderosa pine are native plants in Colorado that provide food or cover for yellow-headed blackbirds.
Yellow-headed Blackbirds in other regions
Other backyard birds in Colorado
Sources
- Yellow-headed Blackbird — All About Birds, Cornell Lab of Ornithology
- Yellow-headed Blackbird life history — Cornell Lab of Ornithology
- Yellow-headed Blackbird — Audubon Guide to North American Birds
- eBird region overview and bar charts — Colorado
- USDA Plant Hardiness Zone Map (2023)
- Audubon Native Plants Database
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.