Gray Catbirds in Iowa
When catbirds are present in Iowa, when they nest, which native Iowa plants feed them, and how to host them in a USDA 4b–6a yard.
- Status in Iowa
- Summer breeder
- Nesting window
- May–July
- Broods
- 1–2 per season
- Hardiness zones
- USDA 4b–6a
When to expect catbirds in Iowa
Gray Catbirds are summer residents in Iowa, arriving shortly before nesting begins in May and leaving after the young are independent. Through the season they feed on ants, beetles and caterpillars.
Humid continental prairie state, with loess hills in the west and the Driftless Area in the northeast.
Nesting in Iowa
Across Iowa, catbirds typically nest from May–July. Nest site: bulky cup deep in dense thickets or vines. Females lay 1–6 eggs, incubate for 12–14 days, and young leave the nest after 10–11 days.
Hot, humid summers with thunderstorms.
- Gray Catbirds don't use nest boxes. Keep dense native shrubs and trees such as eastern red cedar, serviceberry, winterberry for nest sites.
- Delay heavy pruning of shrubs until after July.
Native Iowa plants that attract catbirds
Of the regional native plants we track for Iowa, these 8 provide food or cover catbirds use:
Dense evergreen roost cover and bluish 'berries' eaten through winter.
Early-summer berries arrive exactly when nestlings are being fed.
Deciduous holly holding red fruit into mid-winter.
Fruit clusters persist all winter as emergency food.
Red fruit heads hang on through winter.
Acorns plus hundreds of caterpillar species for nestling food.
Drought-hardy prairie oak with large acorns and a heavy insect load.
Summer fruit and one of the top caterpillar host trees.
Feeding catbirds through the Iowa year
Catbirds rarely eat seed but visit oriole jelly feeders and fruiting shrubs; dense thickets bring them in.
- Best foods: Grape jelly, Oranges, Mealworms, Fresh berries.
- In Iowa's summer: offer water and insect foods; natural food is abundant.
Frequently asked
Are catbirds in Iowa year-round?
No. Gray Catbirds are summer breeders in Iowa and leave for the winter.
When do catbirds nest in Iowa?
Nesting in Iowa typically runs May–July, with 1–2 per season. Clutches are 1–6 eggs, incubated for 12–14 days.
What native plants attract catbirds in Iowa?
Eastern red cedar, Serviceberry, Winterberry, Staghorn sumac, Smooth sumac, White oak, Bur oak, Black cherry are native plants in Iowa that provide food or cover for catbirds.
Gray Catbirds in other regions
Other backyard birds in Iowa
Sources
- Gray Catbird — All About Birds, Cornell Lab of Ornithology
- Gray Catbird life history — Cornell Lab of Ornithology
- Gray Catbird — Audubon Guide to North American Birds
- eBird region overview and bar charts — Iowa
- 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.