mce] STA TISTICS FROM COLLEGE CLASSES IN BIRD STUDY 273 



Table i. 



Before Error After 



Robin 125 126 



Bob- white 121 1 122 



Crow 1 19 126 



Hummingbird.... 114 [ 124 



Blue Jay 112 126 



Red-headed Wood- 

 pecker in 126 



Bluebird 1 11 3 120 



Mourning Dove .. 109 1 122 



Cardinal ........ 109 6 1 19 



Screech Owl 103 23 90 



Turkey Buzzard . . 82 14 81 



Barn Swallow .... 75 8 85 



Catbird 73 123 



Meadow Lark ... . 71 119 



Goldfinch 68 8 103 



Red-winged Black- 

 bird 67 124 



Killdeer 67 5 90 



Chimney Swift ... 66 1 1 1 1 



Bronzed Grackle . 53 7 106 



Baltimore Oriole . 51 123 



Flicker 49 123 



Junco 47 15 77 



Chipping Sparrow. 45 9 71 



Sparrow Hawk. . . 43 6 89 



Kingfisher 40 117 



Wilson's Snipe. . . 40 21 56 



House Wren 39 4 75 



Brown Thrasher. . 34 123 



Song Sparrow 34 5 93 



American Wood- 

 cock 33 4 83 



Kingbird 27 2 St 



Bobolink 25 3 88 



Downy Wood- 

 pecker 24 1 96 



Field Sparrow. .. . 21 3 85 



Phoebe. ... 21 6 71 



Cowbird 20 1 104 



Purple Martin .... 20 1 76 



Wood Pewee 20 6 63 



Indigo Bunting .. . 19 97 



Yellow Warbler.. 19 3 96 



Nighthawk 16 67 



Chickadee 16 6 36 



Number of students knowing each species of bird 

 in text, page 272. 



Red- tailed Hawk. 

 Yellow-billed Cuc- 

 koo 



Bank Swallow .... 

 Cedar Waxwing. . 



Towhee 



Tufted Tit 



Spotted Sandpiper 

 Hairy Woodpecker 

 Scarlet Tanager.. 

 Tree Sparrow . . . 

 White-breasted 



Nuthatch . . . 

 Horned Lark .... 

 White-throated 



Sparrow 



Vesper Sparrow . . 

 Wood Thrush . . . 

 Hermit Thrush . . . 

 Orchard Oriole . . 

 Crested Flycatcher 

 Brown Creeper. . . 

 Rose- breasted 



Grosbeak 



Golden -crowned 



Kinglet 



Fox Sparrow 



Black and White 



Warbler 



White- crowned 



Sparrow 



Oven-bird 



Ruby-crowned 



Kinglet 



Black-billed Cuc- 

 koo 



Redstart 



Yellow-breasted 



Chat 



Red eyed Vireo . . 

 Maryland Yellow- 

 throat 



Lark Finch 



Red-breasted Nut- 

 hatch 



Before Error After 

 15 I 64 



l 3 



IO 

 10 

 10 



9 



9 

 8 



8 



7 

 7 



6 

 6 

 6 

 6 

 6 



5 



5 



3 

 3 



99 



63 



106 



100 



98 



99 

 69 



I2 3 

 40 



81 

 26 



75 

 56 



5 1 

 48 



4J 

 109 



34 

 102 



83 

 60 



59 



52 

 24 



85 



66 

 61 



60 

 5° 



38 

 21 



13 



Data recorded for 126 students. Kxplanation 



