| Species | Percent Males | Reference | |
| Juvenilea | Adult | ||
| Hungarian partridge | 50 | 56 | Keith (1958) |
| Bobwhite quail | 51 | 62 | Hickey (1955) |
| California quail | 50 | 58 | Emlen (1940) |
| Ruffed grouse | 50 | 54 | Dorney (1960) |
| Willow ptarmigan | 54 | 60 | Bergerud (1962) |
| Sharp-tailed grouse | 49 | 55 | Keith (1958) |
| Mallard | 51.2 | 63.8 | Bellrose et al. (1961) |
| Black duck | 48.6 | 61.3 | Bellrose et al. (1961) |
| Pintail | 51.6 | 54.9 | Bellrose et al. (1961) |
| Canvasback | 44.0 | 56.8 | Bellrose et al. (1961) |
| Scaup | 49.7 | 61.4 | Bellrose et al. (1961) |
| Starling | 52 | 66 | Davis (1959) |
| . | . | . | . |
| Brown rat | 51 | 41 | Leslie et al. (1952) |
| Muskrat | 57 | 50 | Beer and Trux (1950) |
| Cottontail rabbit | 50 | 46 | R. A. McCabe (unpub.) |
| Elkb | 52c | 23 | Cowan (1950) |
a The term juvenile refers to birds during thier first fall or winter.
b Data from unhunted population where food was scarce.
c Juvenile = prenatal to 8 months old.
Updated 05 August 1996