BLACK-WINGED KITE. 113 
Of the other two Mr. Gurney thinks there is sufficient 
evidence to place them among the doubtful species; 
and as the publication of this work will extend over 
three or four years, there will probably be abundant 
materials in that time to form a supplement of really 
indigenous or accidental species, about which the 
evidence may admit of no reasonable doubt. 
VOL. I. Q 
