Number of eggs.—Clutch-size is 3 or 4 eggs.
Nests are of wood chips in cavities excavated 45 to 60 feet high in main trunks of cottonwood, sycamore, and pin oak.
Red-bellied Woodpecker: Centurus carolinus zebra (Boddaert).—In woodland habitats this is a common resident in eastern Kansas, local in the west.
Breeding schedule.—Thirty-seven records of breeding span the period March 1 to June 30 ([Fig. 5]); the modal date of egg-laying is around April 25.
Number of eggs.—Clutch-size is about 5 eggs.
Nests are of wood chips in cavities excavated in elm, cottonwood, box elder, ash, hickory, or willow, about 25 feet high (nine to 60 feet).
Fig. 5.—Histograms representing breeding schedules of the Common Nighthawk, Chimney Swift, woodpeckers, and flycatchers in Kansas. See legend to Figure 1 for explanation of histograms.
Red-headed Woodpecker: Melanerpes erythrocephalus (Linnaeus).—This is a common summer resident and uncommon permanent resident in open woodland; in winter it is noted especially around groves of oaks. M. e. erythrocephalus (Linnaeus) occurs in eastern Kansas and M. e. caurinus Brodkorb occurs in central and western Kansas.