The subjects chosen are of common interest, and nearly all can be found by any person who hunts for them assiduously. As the seasons vary in different localities, it has been impossible to set a date for the appearance or disappearance of an animal or a flower, that will apply alike to all parts of the country for which this volume is intended. Eastern United States. J. Alden Loring. _Oswego, N. Y._ List of Illustrations PAGE White-breasted Nuthatch on a Bird-house _Frontispiece_ White-breasted Nuthatch 15 English Sparrow 25 Purple Martins 35 Northern Shrike 39 Prairie Horned Lark 47 Loon 53 Hibernating Woodchuck 57 European Hedgehog 75 Nest of a Meadow Mouse Exposed by Melting Snow 85 Screech Owl 89 Meadow Lark 99 Downy Woodpecker 105 Fox at Den 119 Chimney Swift 125 "One of your bird-houses should be tenanted by a wren" 129 Male Bobolink 141 Barn Swallow 153 Belted Kingfisher 165 Catbird 171 Woodchuck 183 Song Sparrow 191 Yellow-billed Cuckoo 199 Kingbird 207 Red-winged Blackbirds 215 Cedar Waxwing 221 Yellow-breasted Chat 245 Skunk Hunting Grasshoppers 255 American Redstart 259 Grebe 277 Spotted Sandpiper 281 Chickadees (Upper, Mountain; Lower, Hudsonian) 287 "The great horned owl and the snowy owl can be tamed" 301 Blue Jays 305 A Four-storied Warbler's Nest. Each Story Represents an Attempt by the Warbler to Avoid Becoming Foster-parent of a Young Cowbird 311 Snow Bunting 315 Cotton-tail Rabbit Taking a Sun Bath 331