Prothonotary Warblers in Missouri
When prothonotary warblers are present in Missouri, when they nest, which native Missouri plants feed them, and how to host them in a USDA 5b–7b yard.
- Status in Missouri
- Summer breeder
- Nesting window
- April–June
- Broods
- 1–2 per season
- Hardiness zones
- USDA 5b–7b
- Nest box
- 1 1/8 in hole, 4 × 4 in floor, 3–6 ft over water
When to expect prothonotary warblers in Missouri
Prothonotary Warblers are summer residents in Missouri, arriving shortly before nesting begins in April and leaving after the young are independent.
Humid continental, from the Ozark Plateau in the south to prairie and river floodplains in the north.
Nesting in Missouri
Across Missouri, prothonotary warblers typically nest from April–June. Plan around that window: March for setup, June for clean-out.
Hot, humid summers.
- Have boxes cleaned and mounted before March — prothonotary warblers begin prospecting ahead of egg-laying.
- Use a 1 1/8 in entrance on a 4 × 4 in floor, mounted 3–6 ft over water.
- Fit a pole baffle or hole guard; ventilation gaps and drainage holes are essential.
- Clean out old nests after each brood and again after June.
Native Missouri plants that attract prothonotary warblers
Of the regional native plants we track for Missouri, these 8 provide food or cover prothonotary warblers use:
Fat-rich red fall fruit taken by thrushes, bluebirds and woodpeckers.
Early-summer berries arrive exactly when nestlings are being fed.
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.
Late-summer berry clusters taken by over 40 bird species.
Lipid-rich red fruit fuels fall migrants.
Late nectar for insects and fall seed for sparrows.
Feeding prothonotary warblers through the Missouri year
- Top foods: None — a swamp nest box is the draw.
- In Missouri's summer: offer water and insect foods; natural food is abundant.
Full diet breakdown for prothonotary warblers · Best feeder for prothonotary warblers
Frequently asked
Are prothonotary warblers in Missouri year-round?
No. Prothonotary Warblers are summer breeders in Missouri and leave for the winter.
When do prothonotary warblers nest in Missouri?
Nesting in Missouri typically runs April–June, with 1–2 per season. Clutches are 3–7 eggs, incubated for 12–14 days.
What native plants attract prothonotary warblers in Missouri?
Flowering dogwood, Serviceberry, White oak, Bur oak, Black cherry, American elderberry, Spicebush, New England aster are native plants in Missouri that provide food or cover for prothonotary warblers.
What size birdhouse hole do prothonotary warblers need?
1 1/8 in, with a floor of 4 × 4 in mounted 3–6 ft over water.
Prothonotary Warblers in other regions
Other backyard birds in Missouri
Sources
- Prothonotary Warbler — All About Birds, Cornell Lab of Ornithology
- Prothonotary Warbler life history — Cornell Lab of Ornithology
- Prothonotary Warbler — Audubon Guide to North American Birds
- NestWatch nest box plans and species requirements — Cornell Lab
- eBird region overview and bar charts — Missouri
- 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.