70 THE UNIVERSITY OF THE STATE OF NEW YORK 



Owl, Barn {continued) 



Call no. 

 Nu OwB Adult in Crotch of Old Tree. (1902) 



Nu OwB2 Nesting Site in a Hollow High in Tree. (1902) 

 It nests also in secluded towers, belfries and barn attics. 



Nu OwB3 Nest with Two Eggs in Old Tree Stump. (1902) 



It lays from five to eleven eggs and rears two broods a season. 

 All owls lay pure white eggs. 



Nu OwB4 Two Birds Sixteen Days Old. (1902) 



Note the forming facial disk; the bill not yet very strongly 

 hooked, the position of toes, the outer toe reversible. 



Nu OwB5 Two Birds Twenty-eight Days Old. (1902) 

 They have now acquired their adult feathers. 



Nu OwB6 Single Bird 110 Days Old on Post. (September 1913) 



Owl, Barred {Strix varia varia) 



One of the least harmful of the large owls. It differs from the 

 great horned owl in the absence of ear tufts. It is noisy at night 

 and its hooting ends with a mournful wail. It frequents the 

 denser timber land. It is the commonest owl in the Adirondacks. 



19.5-24 



Nu OwC Adult (captive). (1900) 



Barring across breast serves to identify this species. It has 

 ruffled its feathers and assumed a defensive attitude. 



Nu OwC2 Two Eggs in Hollow of Stump. (1904) 



The nest is usually in the hollow of a tree or in an old nest of 

 a crow or a hawk. No nest is built. 



Nu OwC4 Two Young Birds Perched on Fence. (1904) 

 Note position of the toes. 



