Ae NEW “YORK “ZOOLOGICAL FSOCIEY: 
EGGS AND YOUNG OF LONG-EARED OWL. 
From a photograph by T, H. Jackson. 
The American Long-Eared Owl, Asio wilsonianus (Less.), 1s, 
like the barn owl, found throughout temperate North America 
and Mexico, and also like that species, it is eminently nocturnal. 
The chief difference from the bird of the Old World is the break- 
ing up of the longitudinal stripes into mottling or indistinct trans- 
verse bars. Although such a distinction as this is only superficial, 
yet the fact that the American owls are completely isolated geo- 
graphically, from the Eurasiatic birds, warrants their specific 
designation. 
In size it is midway between the great horned owls and the 
screech owls, and its long feather horns rise from the middle, not 
the sides, of the head. 
Although not an uncommon bird, yet we know but little of 
its habits and less of its notes. Sometimes when hunting it utters 
a low, pleasing whistle, but when disturbed on its nest, it gives 
voice to a loud wailing cry and a grating mew, while in common 
