xiv ILLUSTRATIONS 



Two Views of a Martin Colony 22 



Photograph by J, S. Becker 



Clay Nesting-boxes 22 



Photograph by Robert W. Hegner 



Box with Sliding Cover 23 



Wood Duck House 29 



Barrel House for Martins 39 



Designed by E. H. Forbush 



Screech Owl in Nesting-box 40 



Photograph by E. if. Forbush 



Shelf for Phcebe's Nest 64 



Drawn by E. H. Forbush 



Tin or Zinc Cat-guards 62 



Drawn by E. H. Forbush 



Barbed-wire Cat-guard 63 



A Cat-proof Fence 64 



Song Sparrow at Lunch-counter ....... 80 



Downy Woodpecker at Lunch-counter 80 



Chickadee feeding from Hand • . . 80 



Hermit Thrush at Lunch-counter 80 



Four photographs by Author 



A Bird's Tepee, made of Bean-poles with the Vines 



STILL ATTACHED 80 



Photograph by Frank M. Chapman 



