Breeding schedule.—Eggs are laid in May and June.
Number of eggs.—Clutch-size is about 5 eggs (Davie, 1898).
Nests are placed in concealed places in banks or stumps always where it is wet.
Table 17.—Occurrence in Time of Summer Resident Wood Warblers in Kansas
| Species | Arrival | Departure | ||
| Range | Median | Range | Median | |
| Black-and-white Warbler | Apr. 2-May 12 | May 5 | Sept. 10-Oct. 14 | Sept. 22 |
| Prothonotary Warbler | Apr. 24-May 25 | May 8 | Aug. 6-Sept. 10 | Aug. 22 |
| Parula Warbler | Apr. 6-May 5 | Apr. 23 | Sept. 12-Oct. 7 | Sept. 18 |
| Yellow Warbler | Apr. 21-May 7 | Apr. 30 | Aug. 28-Oct. 1 | Sept. 4 |
| Louisiana Waterthrush | Apr. 2-May 2 | Apr. 16 | Aug. ? | ........ |
| Kentucky Warbler | Apr. 24-May 15 | May 3 | Sept. 13 | ........ |
| Yellowthroat | Apr. 21-May 10 | May 3 | Sept. 8-Oct. 3 | Sept. 17 |
| Yellow-breasted Chat | Apr. 29-May 19 | May 11 | Aug. 29-Oct. 1 | Sept. 8 |
| American Redstart | Apr. 22-May 20 | May 12 | Sept. 1-Oct. 7 | Sept. 10 |
Kentucky Warbler: Oporornis formosus (Wilson).—This is an uncommon summer resident in eastern Kansas, in deciduous forest and woodland. Specimens taken in the breeding season and actual records of nesting come from Riley, Doniphan, Douglas, Leavenworth, Linn, Montgomery, and Labette counties. Temporal occurrence is indicated in [Table 17].
Breeding schedule.—Eggs are laid in May and June.
Number of eggs.—Clutch-size is 4 or 5 eggs.
Nests are placed near or on the ground, usually at the base of small shrubs or clumps of grass.