. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. DEER FOOD HABITS 269 iii < cr lu SEPT. Specimens 6 FIGURE 14. Graphic representation of the food habits of the Lassen-Washoe deer herd in the winter of 1951-52. Winter of 1948-49 The winter of 11)48-49 was the driest and one of the coldest in the sixty-year record of precipitation at Susanville, Lassen County (Up- church and Brown, 1951). During the period October, 1948, through April, 1949, only inches -was recorded at D
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. DEER FOOD HABITS 269 iii < cr lu SEPT. Specimens 6 FIGURE 14. Graphic representation of the food habits of the Lassen-Washoe deer herd in the winter of 1951-52. Winter of 1948-49 The winter of 11)48-49 was the driest and one of the coldest in the sixty-year record of precipitation at Susanville, Lassen County (Up- church and Brown, 1951). During the period October, 1948, through April, 1949, only inches -was recorded at Doyle, with inches occurring in December and inches in March, principally in the form of snow. Accompanying this period of snowfall in December was an abnormally low range of maximum and minimum temperatures. The lowest recorded monthly temperatures for the four years of study occurred in .January and February of 1949, when —22 degrees F. and —24 degrees F. were recorded. The intensive study of the Lassen-Washoe deer herd was initiated by the Department of Fish and Game and the Interstate Deer Herd Committee in 194!). Forty-seven stomach samples were collected from February April of that year. Figure 11 is a graph showing the seasonal trend in diet over the three months of the initial collection. Sagebrush formed the hulk of the diet, and was supplemented in April with green grass. The green grass apparently became available in April, as a result of warmer weather and increased precipitation. The grass eaten in February and .March consisted principally of dry grass and it can he assumed that the Low minimum temperatures of the pre- vious months had inhibited any new growth. Bitterbrush contributed virtually aothing to the diet of the deer during the period from Febru- ary through April, Ponderosa pine needles contributed a small part to the February diet and also occurred in the stomachs of the deer col- lected in March and April. By April, snowbrush and
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