Orange-crowned Warblers in Ontario
When orange-crowned warblers are present in Ontario, when they nest, which native Ontario plants feed them, and how to host them in a Canadian zones 0a–7a yard.
- Status in Ontario
- Summer breeder
- Nesting window
- June–July
- Broods
- 1 per season
- Hardiness zones
- Canadian zones 0a–7a (southern Ontario roughly equivalent to USDA 4–6)
When to expect orange-crowned warblers in Ontario
Orange-crowned Warblers are summer residents in Ontario, arriving shortly before nesting begins in June and leaving after the young are independent.
Humid continental in the south, boreal and subarctic in the north; most backyard birding happens in the southern Great Lakes lowlands.
Nesting in Ontario
Across Ontario, orange-crowned warblers typically nest from June–July. Plan around that window: May for setup, July for clean-out.
Short, warm summers; Point Pelee and Long Point are continent-famous migration sites.
- Orange-crowned Warblers don't use nest boxes. Keep dense native shrubs and trees such as sugar maple, flowering dogwood, serviceberry for nest sites.
- Delay heavy pruning of shrubs until after July.
Native Ontario plants that attract orange-crowned warblers
Of the regional native plants we track for Ontario, these 8 provide food or cover orange-crowned warblers use:
Insects, seeds and cavities.
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.
Feeding orange-crowned warblers through the Ontario year
- Top foods: Suet, Suet dough.
- In Ontario's summer: offer water and insect foods; natural food is abundant.
Full diet breakdown for orange-crowned warblers · Best feeder for orange-crowned warblers
Frequently asked
Are orange-crowned warblers in Ontario year-round?
No. Orange-crowned Warblers are summer breeders in Ontario and leave for the winter.
When do orange-crowned warblers nest in Ontario?
Nesting in Ontario typically runs June–July, with 1 per season. Clutches are 3–6 eggs, incubated for 12–14 days.
What native plants attract orange-crowned warblers in Ontario?
Sugar maple, Flowering dogwood, Serviceberry, White oak, Bur oak, Black cherry, American elderberry, Arrowwood viburnum are native plants in Ontario that provide food or cover for orange-crowned warblers.
Orange-crowned Warblers in other regions
Other backyard birds in Ontario
Sources
- Orange-crowned Warbler — All About Birds, Cornell Lab of Ornithology
- Orange-crowned Warbler life history — Cornell Lab of Ornithology
- Orange-crowned Warbler — Audubon Guide to North American Birds
- eBird region overview and bar charts — Ontario
- Plant Hardiness Zones of Canada — Natural Resources Canada
- Audubon Native Plants Database
- Ontario Breeding Bird Atlas — Birds Canada
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.