Dixon 1947 Index to Species Mentioned in Journal Turkey Vulture 54, 63 Red-tailed Hawk 61, 63, 105 Marsh Hawk 52, 64, 107 Sparrow Hawk 60, 63, 64, 67, 70 Sharp-tailed Grouse 62 Ruffed Grouse 82, 83, 104, 108 Blue Grouse 93, 94 Sage Grouse 79 Ring-necked Pheasant 58 Hungarian Partridge 79 Killdeer 107 Spotted Sandpiper 102, 106 Mourning Dove 62, 75, 78 Cuckoo 57 Black-billed 79 Screech Owl 107 Horned Owl 53, 58, 73, 74, 75, 78, 96 Poorwill 71, 75 Nighthawk 55, 58, 67, 70, 71, 102, 107, 109 Hummingbird 85 Rufous 106 Yellow-shafted Flicker 52, 61 Red-shafted Flicker 61, 63, 67, 77, 78, 90, 95, 103 Red-headed Wdpkr. 52, 58, 61, 90 Red-naped Sapsucker 85, 87, 88, 89, 103 Hairy Wdpkr. 54, 72, 91, 95, 97, 106, 107, 108 Downy Wdpkr. 54, 84 American 3-toed Wdpkr. 96, 97 Eastern Kingbird 58, 60, 64, 68, 69, 72, 78, 80