CATALOGUE. 55 
Nyctale albifrons. The taking of this young bird renders it 
probable that Vyctale acadica breeds on the islands; but it is 
not abundant, as no others were taken. 
A few days later, on Byron Island, while taking an even- 
ing stroll, a small Owl circled silently around me for several 
minutes, which, from the momentary glimpses obtained of it 
in the uncertain light, I believed to be the present species. 
50. “G/RCUS CVANEUS war. HUDSONTECTS, (.) Cs: 
(MarsH Hawk.) 
A rather common species. I saw it several times at 
House Harbor, and once on Byron Island. Mr. Perham 
killed a specimen on Bird Rock. 
Probably breeds. 
57. ACCIPITER FUSCUS, (Gm.) Bp. 
(SHARP-SHINNED HAWK.) 
Observed what I believed to be this Hawk at Hospital 
Island, but was unable to approach within shot of it. 
