viii CONTENTS 



PAGE 



A MINIATURE BRITISH FAUNA 



I. MICE - IO3 



II. VOLES - - IO9 



III. SHREWS - - - 115 



AUTUMN AND WINTER BIRDS 



I. A GOLDCREST MIGRATION - 121 



II. WAYFARERS: THE RUIN OF THE YEAR .- 125 



III. WINTER BIRDS - 130 



IV. THE SNOW-WALKERS - 133 



WILD DUCKS AND DUCK DECOYING 



I. SURFACE FEEDERS - 138 



II. DIVING DUCKS 145 



III. EIDER DUCKS - 152 



IV. DUCK DECOYING - - 157 



SOME BIRDS OF THE WATERFALLS 



I. THE WATER-OUZEL - 165 



II. THE KINGFISHER - - I/ 1 



III. THE GREY WAGTAIL - 175 



WATER-POACHERS 



/s 



I. SPAWN EATERS - 1 82 

 II. FRY POACHERS 187 



III. A VEGETABLE POACHER - - 193 



IV. HUMAN POACHERS - - 195 



BIRD PROBLEMS 



I. DO BIRDS TRANSPORT EACH OTHER 



THROUGH THE AIR ? -. - 2O3 



II. THE POWER AND SPEED OF FLIGHT IN BIRDS 211 



III. REASONING IN BIRDS - - r ....*. 2l8 



