FAMILY ARDEID^E. HERONS, EGRETS, AND BITTERNS. 



91 



General plumage, white ; tips of primaries, tinged with slaty blue ; legs, yellowish 

 olive (immature). Ardea ccerulea. Little Blue Heron. 



See No. 157. 



General plumage, white; ends of prima- 

 ries, not tioged with slaty hlue ; legs, black ; 

 feet, yellow. 



Ardea candidisshna. Snowy Heron. 

 Snowy Egret. 

 See No. 154. 



Louisiana Heron. 

 Back, ashy gray; primaries, slaty gray; belly and sides, white. 



Ardea tricolor ruiicollis. Louisiana Heron. 

 See No. 156. 



