=Tufted Titmouse=: _Paras bicolor_ Linnaeus.--This resident is common in the eastern half of Kansas, in woodlands. Specimens taken in the breeding season and nesting records come from east of a line running through Cloud, Harvey, and Sumner counties, and the species probably breeds in Barber County. _Breeding schedule._--Twenty-two records of breeding span the period March 21 to June 10 (Fig. 7); the modal date for laying is April 25, and 54 per cent of all clutches are laid in the period April 11 to 30. _Number of eggs._--Clutch-size is 4 to 5 eggs (4.5; 6). Nests are placed in cavities about 12 feet high (ranging from three to 30 feet) in elm, oak, cottonwood, hackberry, redbud, osage orange, and nestboxes placed by man. =White-breasted Nuthatch=: _Sitta carolinensis_ Latham.--This resident in eastern Kansas, in well-developed woodland, is uncommon. _S. c. cookei_ Oberholser occurs east of a line running through Douglas and Cherokee counties, on the basis of specimens taken in the breeding season and actual nesting records, and _S. c. carolinensis_ Latham occurs in Montgomery and Labette counties. _S. c. nelsoni_ Mearns has been recorded in Morton County but probably does not breed there. _Breeding schedule._--Eggs are laid in March and April; young have been recorded being fed by parents throughout May. _Number of eggs._--Clutch-size is between 5 and 10 eggs. Nests are placed in cavities about 30 feet high in elm and sycamore. =House Wren=: _Troglodytes aedon parkmanii_ Audubon.--This summer resident is common in the east and uncommon in the west. Preferred habitat is in woodland, brushland, and urban parkland. House Wrens arrive in eastern Kansas in the period April 3 to 27 (the median is April 19), and are last seen in autumn in the period September 19 to October 13 (the median is September 30). _Breeding schedule._--The 116 records of breeding span the period April 11 to July 31 (Fig. 7); the modal date of laying is May 20. About 45 per cent of all clutches are laid in the period May 11 to 31. _Number of eggs._--Clutch-size is 7 eggs (5.8, 3-7; 20). Clutches laid in May average 6.1 eggs (4-7; 14); those laid in June and July average 5.0 eggs (3-7; 6). Nests are placed in cavities about ten feet high (ranging from two to 50 feet) in cottonwood, elm, willow, and a wide variety of structures, mostly nestboxes, built by man. =Bewick Wren=: _Thryomanes bewickii_ Audubon.--This wren is an uncommon resident in Kansas, except for the northeastern quarter, in woodland understory and brushland. _T. b. bewickii_ Audubon occurs north and east of stations in Riley, Pottawatomie, Douglas, and Linn counties, and _T. b. cryptus_ Oberholser is found south of stations in Greeley, Stafford, and Linn counties; a zone of intergradation occurs between the two named populations. The species occupies marginal habitat in most of Kansas and periodically is reduced in numbers by severe winters.