Number of eggs.—Clutch-size is about 4 eggs.
Nests are placed on the ground, at bases of small bushes.
Table 20.—Occurrence in Time of Summer Resident American Buntings in Kansas
| Species | Arrival | Departure | ||
| Range | Median | Range | Median | |
| Rufous-sided Towhee | Apr. 2-Apr. 19 | Apr. 9 | Sept. 20-Oct. 8 | Sept. 29 |
| Lark Bunting | May 5-May 14 | May 10 | ........ | ........ |
| Grasshopper Sparrow | Apr. 12-May 11 | Apr. 29 | Aug. 20-Oct. 6 | Aug. 31 |
| Henslow Sparrow | Apr. 14-Apr. 30 | Apr. 22 | Oct. 15 | ........ |
| Lark Sparrow | Mar. 29-Apr. 21 | Apr. 18 | Sept. 13-Oct. 16 | Oct. 12 |
| Chipping Sparrow | Mar. 6-Apr. 29 | Apr. 23 | Oct. 3-Nov. 15 | Oct. 20 |
| Field Sparrow | Mar. 4-Apr. 28 | Apr. 7 | Oct. 5-Nov. 12 | Oct. 30 |
Chipping Sparrow: Spizella passerina passerina (Bechstein).—This is an uncommon summer resident in open woodland, second-growth, and edge. S. p. passerina is found east of stations in Barber and Shawnee counties; Chipping Sparrows are not known to breed farther to the west, but records for north-central Kansas are likely to be found. The subspecific affinities of our Chipping Sparrows are entirely with the nominate subspecies, and there is no basis for earlier reports (Long, 1940; Tordoff, 1956; Johnston, 1960) that S. p. arizonae Coues (= S. p. boreophila Oberholser) occurs in Kansas.
Breeding schedule.—Nine records of breeding fall in the period May 1 to May 10, in no way indicating the whole span of the breeding season; the species probably lays eggs in May and July, as well as in June.
Number of eggs.—Clutch-size is 4 eggs.
Nests are placed four to 40 feet high in evergreens of a variety of kinds.
Field Sparrow: Spizella pusilla (Wilson).—This species is a common summer resident in grassland and edge habitats. S. p. pusilla (Wilson) breeds in eastern Kansas chiefly east of the Flint Hills; S. p. arenacea Chadbourne breeds in central and western Kansas, intergrading easterly with S. p. pusilla.
Breeding schedule.—Twenty-nine records of breeding span the period April 21 to September 10 ([Fig. 9]); the modal date for first clutches is May 5.