_Number of eggs._--Clutch-size is 4 eggs (4.0, 3-6; 12). Nests are placed in holes and recesses in trees, three to 20 feet high. =Great Horned Owl=: _Bubo virginianus_ (Gmelin).--This is a common resident throughout Kansas, especially near woodlands and cliffsides. _B. v. virginianus_ (Gmelin) occurs east of a line through Rawlins and Meade counties and _B. v. occidentalis_ Stone occurs to the west. _Breeding schedule._--Fifty-seven records of egg-laying span the period January 11 to March 20 (Fig. 4); the modal date for laying is near February 10. _Number of eggs._--Clutch-size is 2 eggs (2.4, 2-3; 22). Nests are placed about 30 feet high in cottonwood, elm, osage orange, hackberry, juniper, locust, cliffsides, and buildings of man. Old nests of hawks, crows, and herons are frequently appropriated. =Burrowing Owl=: _Speotyto cunicularia hypugaea_ (Bonaparte).--This is an uncommon summer resident in western Kansas in grassland and open scrub habitats. Stations of breeding all come from west of a line running through Cloud and Barber counties. Arrival in spring is between March 22 and April 17 (the median for 7 records is April 9), and dates last seen in autumn span the period September 8 to November 14 (the median for 9 records is September 26). _Breeding schedule._--Twenty-one records of egg-laying run from April 11 to July 10 (Fig. 4); the mode of laying is May 15. _Number of eggs._--Clutch-size is 7 or 8 eggs. Nests are informal aggregations of plant and animal fibers in chambers of earthen burrows usually made by badgers or prairie dogs. =Barred Owl=: _Strix varia varia_ Barton.--This is a local resident in eastern Kansas, in heavy woodland. The species is said by implication (A. O. U. Check-list, 1957) to occur in western Kansas, but no good breeding records are available, all such records coming from and east of Morris County. Specimens from southeastern Kansas show morphologic intergradation with characters of _S. v. georgica_ Latham. _Breeding schedule._--Three records of egg-laying are for the first half of March. _Number of eggs._--Clutch-size in our sample is 2 eggs. Nests are situated in cavities in trees or in old hawk or crow nests. =Long-eared Owl=: _Asio otus wilsonianus_ (Lesson).--This owl is a local resident or summer resident in woodland with heavy cover throughout the State. Breeding records are available from Trego, Meade, Cloud, and Douglas counties. _Breeding schedule._--Four records of egg-laying are for the period March 11 to April 10. _Number of eggs._--Clutch-size is 5 or 6 eggs. Nests are placed in hollows of trees, stumps, cliffsides, on the ground surface, or in old hawk, crow, or magpie nests (Davie, 1898). =Short-eared Owl=: _Asio flammeus flammeus_ (Pontoppidan).--This is a local resident or summer resident in open, marshy, and edge habitats; records of nesting come from Republic, Marshall, Woodson, and Bourbon counties. _Breeding schedule._--Eggs are laid at least in April.