When do American arrive in Colorado?
The American Coot is a summer breeder in Colorado — here is when to expect it, when it leaves, and how to be ready.
American Coot timing in Colorado
- Arrives
- Around March
- Leaves
- By August
- Status here
- Summer breeder
- Nesting season
- April–July
- Present roughly
- March–August
In Colorado, American are present through the warm months, arriving around March 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 American 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 March is the time to act. Have feeders cleaned, filled and out by early March — the first American into Colorado are scouting for reliable food, and a station that's ready early gets added to their route.
Once nesting begins around April, adults switch to protein-rich food for their young and visits to feeders become quick and purposeful. Expect the busiest activity at dawn.
What American eat while they're here
- Pondweed, algae, snails and insects
Dives and dabbles on ponds and grazes adjacent lawns; gathers in big winter rafts.
Full American Coot diet guide → · Best feeder for American →
Native plants that hold American in Colorado
Food keeps a migrant for a day; habitat keeps it for the season. These Colorado-native plants are known to attract American:
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.
Keep exploring
Frequently asked
When do American arrive in Colorado?
American typically arrive in Colorado around March, with nesting underway by April. Timing can shift a week or two with the weather in any given year.
When do American leave Colorado?
Most American have left Colorado by August. They spend the winter farther south and return the following spring.
Do American stay in Colorado all year?
No — in Colorado the American Coot is a summer breeder, present roughly March–August. Outside that window it is rarely seen in the state.
What should I put out before American arrive in Colorado?
Have feeders up and clean by early March — first arrivals scout reliable food sources. Good offerings for this species: pondweed, algae, snails and insects.
Sources
- American Coot — All About Birds, Cornell Lab of Ornithology
- American Coot life history — Cornell Lab of Ornithology
- American Coot — 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.