FAMILY ARDEIDZ. 
HERONS, EGRETS, AND BITTERNS. 9] 
General plumage, white; tips of primaries, tinged with slaty blue; legs, yellowish 
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olive (immature). Ardea cerulea. Little Blue Heron. 
See No. 157. 
General plumage, white; ends of prima- 
ries, not tiaged with slaty blue; legs, black ; 
feet, yellow. 
Ardea candidissima. Snowy Heron. 
Snowy Egret. 
See No. 154. 
Louisiana Heron. 
Back, ashy gray: primaries, slaty gray; belly and sides, white. 
Ardea tricolor ruficollis. Louisiana Heron. 
See No. 156. 
