Number of eggs.—Clutch-size is 4 to 5 eggs (4.2, 3-5; 58). The seasonal progression in clutch-size can be summarized as follows:
| March 21-April 10: | 4.0 eggs (2 records) |
| April 11-May 10: | 4.4 eggs (37 records) |
| May 11-June 10: | 3.9 eggs (10 records) |
| June 11-July 20: | 3.6 eggs (9 records) |
Nests are placed on horizontal, vertical, or overhanging surfaces of culverts, bridges, houses of man, earthen cliffs, rocky ledges, and entrances to caves, at an average height of 7.8 feet.
Say Phoebe: Sayornis saya saya (Bonaparte).—This is a common summer resident in western Kansas, breeding at least east to Cloud County, in open country. Occurrence in time is listed in [Table 13].
Breeding schedule.—Ten records of breeding fall in the period May 1 to July 20; the modal date for egg-laying is in late May.
Number of eggs.—Clutch-size is about 5 eggs.
Nests are placed under bridges, in houses, or on cliffsides and earthen banks.
Acadian Flycatcher: Empidonax virescens (Vieillot).—This is an uncommon summer resident in eastern Kansas, in woodland and riparian habitats. Temporal occurrence is indicated in [Table 13].
Breeding schedule.—The available records of breeding by this species in Kansas are too few to indicate reliably the span of the breeding season. Information on hand suggests that Acadian Flycatchers lay most eggs in late May or early June, and this places their nesting peak some 10 to 20 days earlier than peaks for Wood Pewees and Traill Flycatchers.
Number of eggs.—Five records show 3 eggs each.