Prothonotary Warblers in Louisiana
When prothonotary warblers are present in Louisiana, when they nest, which native Louisiana plants feed them, and how to host them in a USDA 8a–10a yard.
- Status in Louisiana
- Summer breeder
- Nesting window
- March–June
- Broods
- 1–2 per season
- Hardiness zones
- USDA 8a–10a
- Nest box
- 1 1/8 in hole, 4 × 4 in floor, 3–6 ft over water
When to expect prothonotary warblers in Louisiana
Prothonotary Warblers are summer residents in Louisiana, arriving shortly before nesting begins in March and leaving after the young are independent.
Humid subtropical, with coastal marsh, bottomland hardwood forest and piney uplands in the north.
Nesting in Louisiana
Across Louisiana, prothonotary warblers typically nest from March–June. Plan around that window: February for setup, June for clean-out.
Very hot, humid summers and hurricane season June–November.
- Have boxes cleaned and mounted before February — 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 Louisiana plants that attract prothonotary warblers
Of the regional native plants we track for Louisiana, 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.
Blue-black fall fruit and dense nesting cover.
Lipid-rich red fruit fuels fall migrants.
Feeding prothonotary warblers through the Louisiana year
- Top foods: None — a swamp nest box is the draw.
- In Louisiana'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 Louisiana year-round?
No. Prothonotary Warblers are summer breeders in Louisiana and leave for the winter.
When do prothonotary warblers nest in Louisiana?
Nesting in Louisiana typically runs March–June, with 1–2 per season. Clutches are 3–7 eggs, incubated for 12–14 days.
What native plants attract prothonotary warblers in Louisiana?
Flowering dogwood, Serviceberry, White oak, Bur oak, Black cherry, American elderberry, Arrowwood viburnum, Spicebush are native plants in Louisiana 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 Louisiana
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 — Louisiana
- 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.