Mc Farland et al., 1963. California Fish and Game, 49: 207-209 Document reference McFarland, L.; George, H.; McKinnie, H., 1963. Grain preference of captive waterfowl. California Fish and Game, 49: 207-209Citation key Mc Farland et al., 1963Datasheets Cockspur grass (Echinochloa crus-galli) grain
