6 CONTENTS. 



Biographies of species — Continued. Page. 



Eicliardson's Owl {NyetaXa tengmalmi rioharUsoni) 159 



Saw-whot Owl {Nyotala acadica) 160 



Screech Owl (Megasoops asio) 163 



Flammiilated Screech Owl (Megasoops fiariimeolus) '. 173 



Great Horned Owl {Bubo virginianua) 174 



Snowy Owl {Nyctea nyctea) 182 



Hawk Owl {Surnia ulula eaparoch) 187 



Burrowing Owl (Speotyto cunicularia hypogcea) 189 



Pygmy Owl ( Glaucidium gnoma) 196 



Ferruginous Pygmy O wl ( Glaucidium phaloenoides) 1S9 



Elf Owl (Micropallas whitneyi) 2C0 



