Lark Sparrows in Colorado
When lark sparrows 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
- April–July
- Broods
- 1–2 per season
- Hardiness zones
- USDA 3a–7b
When to expect lark sparrows in Colorado
Lark Sparrows are summer residents in Colorado, arriving shortly before nesting begins in April 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, lark sparrows typically nest from April–July. Plan around that window: March for setup, July for clean-out.
Warm, dry days and cool nights; afternoon storms are common in July and August.
- Lark Sparrows don't use nest boxes. Keep dense native shrubs and trees such as rabbitbrush for nest sites.
- Delay heavy pruning of shrubs until after July.
Native Colorado plants that attract lark sparrows
Of the regional native plants we track for Colorado, these 8 provide food or cover lark sparrows 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.
Nectar-rich in summer, seed for finches in fall.
Late-season bloom supports insects; seed for sparrows.
Feeding lark sparrows through the Colorado year
- Top foods: Millet, Cracked corn.
- In Colorado's summer: offer water and insect foods; natural food is abundant.
Full diet breakdown for lark sparrows · Best feeder for lark sparrows
Frequently asked
Are lark sparrows in Colorado year-round?
No. Lark Sparrows are summer breeders in Colorado and leave for the winter.
When do lark sparrows nest in Colorado?
Nesting in Colorado typically runs April–July, with 1–2 per season. Clutches are 3–6 eggs, incubated for 11–12 days.
What native plants attract lark sparrows in Colorado?
Wild bergamot, Black-eyed Susan, Common sunflower, New England aster, Little bluestem, Tall goldenrod, Rocky Mountain bee plant, Rabbitbrush are native plants in Colorado that provide food or cover for lark sparrows.
Lark Sparrows in other regions
Other backyard birds in Colorado
Sources
- Lark Sparrow — All About Birds, Cornell Lab of Ornithology
- Lark Sparrow life history — Cornell Lab of Ornithology
- Lark Sparrow — 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.