THEIR ECONOMIC RELATIONS TO THE AGRICULTURIST 23 



THE SNOWY OWL AND GREAT HORNED OWL. 



As supplementing a plea made in Circular 32, in behalf of 

 birds of prey as a class, we introduce here figures and brief notes 

 of two of our owls not mentioned in the earlier publication. The 

 first-named, to be sure, is not a common bird in Minnesota. When 

 seen, it is generally in the winter season, at which time we have 

 occasionally observed it in the bare fields. Our field notes, how- 

 ever, show that this bird was met with occasionally in Otter Tail 

 County in October and November, some years ago. It is, how- 

 ever, distinctly a boreal bird, pushing its migrations southerly 

 only in its search for food. 



The Great Horned Owl, however, arriving here sometimes as 

 early as February is a common bird within our state borders. 



