92 



KEY TO THE I'.IHDS OF EASTERN NORTH AMERICA. 



CU'iii'i-al i)lmiiaiii', tawny brown, mottled ami streaked with dark brown ; upjicr surface of 

 primaries, blackish. Butanrus lentujinoxns. American Bittern. 



See Xo. 145. 



r>ill, larije: top of head, black; liaek, 



frrecii (adult). 



Xiirtiritriix injr/irnrax ncriiis. 



Night Heron. 

 See Xo. 159. 



Hill, lariie; top of head, white or whit= 



ish ; back, not iiTcen (adult). 

 Niirliciirii.f ridlitfoiv. 



Yellow=crowned Night Heron. 



See No. ir.n. 



Bill, larije; o;eneral plumag'c, mottled, 

 and streaked brown and white; outer edji'c 

 of primaries, reddish brown (immature). 

 Niicticordx niictirorax ixvviiis. 



Night Heron. 

 See Xo. 1.")".). 



r>ill, lari;'!'; ii-ciicnil i>1uiikii;'(', mottled 

 and sti-eaked brown and wbit(>: i)rimaries, 

 slaty brown (innnature)- 

 Xyrtirorax riolareuf!. 



Yellow=crowned Night Heron. 

 See Xo. IGO. 



NlKlit llfl-oil. 



