_Breeding schedule._--Eggs are probably laid in May and June. Goss (1891:351) found a nest under construction on May 11, 1885, and this is the only nesting record of the species in the State. _Number of eggs._--Clutch-size is about 4 eggs (Davie, 1898). Nests are placed low, perhaps around four feet high, in deciduous trees and shrubs (Davie, _op. cit._). =White-eyed Vireo=: _Vireo griseus noveboracensis_ (Gmelin).--This is a local summer resident in eastern Kansas, in woodland and forest edge. Stations of breeding occurrence are in Doniphan, Douglas, Johnson, Anderson, Labette, and Montgomery counties. The species is present within the extreme dates of April 23 to October 5 (Table 16). _Breeding schedule._--Ten records of breeding span the period May 10 to June 30; the modal date for egg-laying is June 10. The present sample is not adequate to indicate extreme or modal dates with reasonable accuracy. _Number of eggs._--Clutch-size is 4 eggs (3.6, 3-4; 5). Nests are placed relatively low in forks in trees and shrubs. =Bell Vireo=: _Vireo bellii bellii_ Audubon.--This summer resident is common in riparian thickets and second-growth scrub. Temporal occurrence is indicated in Table 16. _Breeding schedule._--Sixty-six records of breeding span the period May 1 to July 20 (Fig. 7); the modal date for egg-laying is May 25, and a little under 40 per cent of all eggs are laid in the period May 21-31. Renesting following disruption of first nests is regular, and the small peak in the histogram in the period June 11-20 is representative of this. _Number of eggs._--Clutch-size is 4 eggs (4.6, 3-6; 21). Clutches in May have an average of 3.7 eggs, and those in June and July 3.6 eggs. Nests are placed about two feet high (ranging from one to five feet) in terminal or lateral forks of small branches in elm, hackberry, osage orange, coralberry, dogwood, plum, honey locust, mulberry, willow, cottonwood, and box elder. =Yellow-throated Vireo=: _Vireo flavifrons_ Vieillot.--This is a rare and local summer resident in deciduous forest and woodland in eastern Kansas. Stations of breeding occurrence fall east of Shawnee and Woodson counties. Temporal occurrence is indicated in Table 16. _Breeding schedule._--Eggs are laid at least in May. _Number of eggs._--Clutch-size is about 4 eggs. Nests are placed 16 to 30 feet high in forks of mature deciduous trees. TABLE 16.--OCCURRENCE IN TIME OF SUMMER RESIDENT VIREOS IN KANSAS