. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. SUISUN WATERFOWL NESTING ;) It is the practice of many gun clubs to drain their lands after the hunting season. The subsequent drying and contracting of the spongy peat soil soon results in the formation of great cracks criss-crossing such areas (see Figure 4.) It is doubtful if many ducklings hatched in this kind of environment would be able to avoid these pitfalls and safely reach open FIGURE 4. Cracked ground on Joi
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. SUISUN WATERFOWL NESTING ;) It is the practice of many gun clubs to drain their lands after the hunting season. The subsequent drying and contracting of the spongy peat soil soon results in the formation of great cracks criss-crossing such areas (see Figure 4.) It is doubtful if many ducklings hatched in this kind of environment would be able to avoid these pitfalls and safely reach open FIGURE 4. Cracked ground on Joice Island, Suisun Marsh. Photograph by A. W. Miller. Predation was shown to be a significant factor, especially among broods of young ducks. Raccoons arc known to be abundant. Ii is suggested that persistent harrassmenl by these and oilier predators could have a discouraging effect upon prospective nesting ducks and coots. The insular nature of many areas in the Suisun Marshes makes it entirely feasible to test the effectiveness of predator control on in- creasing nesting success. SUMMARY 1. A study of duck nesting in the Suisun Marshes, Solano County, California was conducted from late April to July 1, 1959. 2. Only 63 duck nests were located, 27 of which were mallard, 33 cinnamon teal, and three gadwall. No coots were found to be nesting in the area. 3. Mallards nests were scattered thinly throughout the area. Cinna- mon teal showed a preference for nest sites in saltgrass within a few yards of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original California. Dept. of Fish and Game; California. Fish and Game Commission; California. Division of Fish and Game. [San Francisco, etc. ] State of California, Resources Agency, Dept. of Fish and Game
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