American Robins in Colorado
When American 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
- Year-round resident
- Nesting window
- April–July
- Broods
- 2–3 per season
- Hardiness zones
- USDA 3a–7b
When to expect American in Colorado
American Robins live in Colorado all year. Cold snaps alternate with sunny, dry thaws; heated baths are valuable because natural water freezes nightly. That makes the cold months the time your yard matters most to them: their winter diet shifts toward holly, juniper, sumac and crabapple fruit.
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, American typically nest from April–July. Nest site: mud-lined cup on a branch fork or ledge; uses open-front nest shelves. Females lay 3–5 eggs, incubate for 12–14 days, and young leave the nest after 13 days.
Warm, dry days and cool nights; afternoon storms are common in July and August.
- American Robins don't use nest boxes. Keep dense native shrubs and trees such as smooth sumac, virginia creeper, pin cherry for nest sites.
- Delay heavy pruning of shrubs until after July.
Native Colorado plants that attract American
Of the regional native plants we track for Colorado, these 8 provide food or cover American use:
Red fruit heads hang on through winter.
Blue fruit on red stems in early fall.
Late nectar for insects and fall seed for sparrows.
Insect-rich in fall and seed in winter.
Fast-growing northern cherry with midsummer fruit.
Dark summer fruit and heavy caterpillar load.
White fruit and red winter stems; good thicket cover.
Berry-like cones feed bluebirds, solitaires and waxwings in winter.
Feeding American through the Colorado year
Robins rarely eat seed. They come for water, lawn worms and winter fruit; many stay north all winter in flocks.
- Best foods: Mealworms, Chopped apple and berries, Suet nuggets.
- In Colorado's winter: Cold snaps alternate with sunny, dry thaws; heated baths are valuable because natural water freezes nightly.
Frequently asked
Are American in Colorado year-round?
Yes. American Robins are year-round residents in Colorado.
When do American nest in Colorado?
Nesting in Colorado typically runs April–July, with 2–3 per season. Clutches are 3–5 eggs, incubated for 12–14 days.
What native plants attract American in Colorado?
Smooth sumac, Virginia creeper, New England aster, Tall goldenrod, Pin cherry, Chokecherry, Red-osier dogwood, Rocky Mountain juniper are native plants in Colorado that provide food or cover for American.
American Robins in other regions
Other backyard birds in Colorado
Sources
- American Robin — All About Birds, Cornell Lab of Ornithology
- American Robin life history — Cornell Lab of Ornithology
- American Robin — 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.