ILLUSTRATIONS. 



PLATES. 



Page. 

 Plate I. Fig. 1, Dwelling house on Bryan farm; Fig. 2, View of Potomac from 

 Bryan homestead, showing feeding places of gulls, ducks, and other 



waterfowl Frontispiece. 



II. Map of Bryan farm, where the investigations were carried on 12 



III. Fig. 1, Bay and hill adjacent to calamus swamp; Fig. 2, Bryan farm 



from the river, showing shore, bluff, alluvial plain, and forested 



hills :.. 16 



IV. Fig. 1, River bluff in winter, which shelters several native sparrows; 



Fig. 2, Hog-lot gully, w^hich furnishes shelter, shade, and food for 



many birds 16 



V. Fig. 1, Weedy old cornfield, lot 3; Fig. 2, Pasture, lot 1 24 



VI. Fig. 1, Trumpet creeper and other vines of river bluff; Fig. 2, Broom- 

 sedge and briers in hog lot 24 



VII. Fig. 1, Calamus swamp, the haunt of several marsh-loving birds; 



Fig. 2, Calamus swamp in winter, showing hill tenanted by blue 



jays, great horned owls, red- shouldered hawks, and ruffed grouse. . 32 



VIII. Fig. 1, Tobacco field of lot 2, where the effect of birds upon an 



uprising of tobacco worms was studied; Fig. 2, Sweet potatoes 



and pear orchard, where various investigations were made 32 



IX. Food of nestlings and adults of three common birds: Fig. 1, House 



wren ; Fig. 2, Bank swallow^; Fig. 3, Catbird 48 



X. Fig. 1, Red-tailed hawk; Fig. 2, Short-eared owl 48 



XI. Fig. 1, Sassafras as a weed in lot 5; Fig. 2, Corn injured by crows. . . 64 

 XII. Fig. 1, Cornfield, lot 5; Fig. 2, Wheat stubble, lot 3. (The line of trees 



in the middle ground marks the course of Persimmon Branch) 64 



XIII. Four common seed-destroying sparrows: 1, junco; 2, white-throated 



sparrow; 3, fox sparrow; 4, tree sparrow 72 



XIV. Fig. 1, Giant ragweed in garden; Fig. 2, Broom-sedge appropriating 



land 72 



XV. Fig. 1, Bobwhite; Fig. 2, Woodcock 80 



XVI. Fig. 1, Broom-sedge of lot 2, frequented at night by bobwhites; Fig. 

 2, Partridge pea overspreading pasture of lot 4, eaten extensively 

 by bobwhites. (The pines in the background were defoliated by 



the pine saw-fly in the spring of 1900 ) 80 



XVIIo Fig. 1, Bluebird at edge of nest; Fig. 2, Former nesting site of blue- 

 birds on lawn at Bryan farm ...„. „,,„ .....o..» 96 



7 



