FAMILY ARDEID.E. I1EKON8, EGRETS, AND 1UTTEKJSS. 



* Group 4. Wing, 11 to 15 inches long. 



Bill, stout; top of the head, black; back, dark ^n-<-n (adult). 



Xijcti<-i,r.f iii/c/frnni.'- inrn'ttx. Night Heron. 



Sec NCI. I.V.I. 



Bill, stout; top of head, white or whitish; bark, not ^reen (adult). 



y y<: 1 1 << >r.<- rinlaci'itx. Yellow=crowned Night Heron. 



See No. 100. 



Bill, stout; general plumage, mottled and streaked brown and white: outer edge of 

 primaries, reddish brown (immature). Ny<-tii-<>r<t.i- ////<7/Vo/v/.>- ncevius. Night Heron. 



Set- No. 151). 



Bill, stout; u'eiiend plumage, mottled and streaked grayish brown and white; primaries, 

 slaty brown (immature). Nycticonu viulacttis. Yellow=crowned Night Heron. 



See No. 160. 



General plumage, white; bill, yellow; h-irs, black. Ardea egretta. American Egret. 



See No. 153. 



Hcneral plumage, wiiitc; lc<;-s, dark olive: terminal half of bill, black; basal half, 

 flesh color < white phase). Anlm rufescens. Reddish Egret. 



See No. 155. 



Head and neck, rufous chestnut; rest of plumage, slate color, or slaty -ray. 



Ariii;t rnf<:>;-itf<. Reddish Egret. 

 See No. 155. 



General plumage, \e!lo\\ hrown, mottled ami streaked wil'n d:nk In-own; upper surface of 

 primaries, blackish. Butaums l<'nti</i imsa*. American Bittern. 



See No. 145. 



* For directiouii for measureoieiit, bco iiage !). 



