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 was watching for mice which the dog might scare up from the bunches of stub- ble and trash. As nearly as I could tell from pellets found in the fields and about nests, the food consisted solely of mice. Of these there seemed to be enough to last for years to come, for while drilling or discing mice were nearly always in sight, scampering away from in front of the machines for dear life. No signs of birds were found in any of the pellets. Until the present season my acquaintance with this owl has been in Illinois, and limited in that state to the brief period during the winter when the birds are to be found commonly in clunps of evergreen trees. [ was anxious to find  nest and was correspondingly excited when 1 stumbled on the first one, on Fig. 12. NEST AND EGGS OF SORT-EAD OWL; SASKATCHEWAN, 19, 1917. 5{ay J9. It might better be id that [ rode over it, for I was discing in a 640- acre field of stubble with a six hoe outfit when an owl suddey flushed just in front of the hoes, and I was so interested in watching the bird fly away that I did not notice the nest til it had been run over. Quickly 1 examined the ne eggs it contained, and fod all but one in perfect condition, the one having a slight crack where a disc blade had grazed it. The nest was merely a hollow, lined with grass, stubble and a few downy owl feather. Incubation in some of the eggs was about two-thirds advanced, while othe were nearly fresh. I continued my work, and on the next day, a Sunday, I visited the spot again to take pictures (see fig. J2) and collect the eggs.