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 NESTLNG-BOX 40 



Photograph by E. H. 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 



Four photographs by Author 



HERMIT THRUSH AT LUNCH-COUNTER 



A BIRD'S TEPEE, MADE OF BEAN-POLES WITH THE VINES 



STILL ATTACHED 80 



Photograph by Frank M. Chapman 



