When do killdeer arrive in Colorado?
The Killdeer is a summer breeder in Colorado — here is when to expect it, when it leaves, and how to be ready.
Killdeer timing in Colorado
- Arrives
- Around February
- Leaves
- By August
- Status here
- Summer breeder
- Nesting season
- March–July
- Present roughly
- February–August
In Colorado, killdeer are present through the warm months, arriving around February and heading south again by August.
These windows are set by latitude: Colorado sits in the middle part of this species' range, so timing here tracks the continental average closely. In any given year, weather can move the first arrivals by a week or two either way.
Month by month in this state
Highlighted months are when killdeer are expected in Colorado. The edges of the window are the interesting weeks — first arrivals and last departures vary most from year to year.
Getting ready before they arrive
The week before February is the time to act. Have feeders cleaned, filled and out by early February — the first killdeer into Colorado are scouting for reliable food, and a station that's ready early gets added to their route.
Once nesting begins around March, adults switch to protein-rich food for their young and visits to feeders become quick and purposeful. Expect the busiest activity at dawn.
What killdeer eat while they're here
- Beetles, grasshoppers, worms and snails
Nests on gravel driveways and rooftops and performs a broken-wing act to lure you from the nest.
Native plants that hold killdeer in Colorado
Food keeps a migrant for a day; habitat keeps it for the season. These Colorado-native plants are known to attract killdeer:
Late nectar for insects and fall seed for sparrows.
Insect-rich in fall and seed in winter.
Dark summer fruit and heavy caterpillar load.
Seeds and bark insects; pygmy nuthatch and woodpecker habitat.
Acorns for jays and woodpeckers across the southern Rockies.
Late-season bloom supports insects; seed for sparrows.
Seed for crossbills, siskins and chickadees.
Early catkins draw insects for arriving warblers and hummingbirds.
Keep exploring
Frequently asked
When do killdeer arrive in Colorado?
killdeer typically arrive in Colorado around February, with nesting underway by March. Timing can shift a week or two with the weather in any given year.
When do killdeer leave Colorado?
Most killdeer have left Colorado by August. They spend the winter farther south and return the following spring.
Do killdeer stay in Colorado all year?
No — in Colorado the Killdeer is a summer breeder, present roughly February–August. Outside that window it is rarely seen in the state.
What should I put out before killdeer arrive in Colorado?
Have feeders up and clean by early February — first arrivals scout reliable food sources. Good offerings for this species: beetles, grasshoppers, worms and snails.
Sources
- Killdeer — All About Birds, Cornell Lab of Ornithology
- Killdeer life history — Cornell Lab of Ornithology
- Killdeer — 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.