EGGS OF NORTH AMERICAN BIRDS. 31 



197. Snowy Heron, Ardea candidissima. Eggs, 2 to 4, 

 varying from oval to elliptical, bluish green ; 1.20 -|- 1.80 to 1.25 

 -f- 1.85. Breeds from New Jersey and Oregon, southward, to 

 Buenos Ayres ; in the United States, from Aj^ril to June, ac- 

 cording to latitude. 



198. Reddish Egret, Ardea rufa. Eggs, 2 to 4, varying 

 from elliptical to oval, bluish green ; 1.50 -|- 2.05 to 1.55 -|- 2.25. 

 Breeds in the Gulf States, Bahamas, Cuba, Jamaica, Mexico, 

 and southward to Guatemala, in April. 



199. Louisiana Heron, Ardea tricolor rvficollis. Eggs, in- 

 distinguishable from those of No. 197. Breeds in the Gulf 

 States, Bahamas, West Indies, Mexico, and Central America, 

 in April and May. 



200. Little Blue Heron. Eggs, indistinguishable from 

 those of No. 197. Breeds from New Jersey, Illinois, and Kan- 

 sas, southw^ard, to Guiana and New Grenada ; also in the West 

 Indies ; in North America, in April and May. 



201. Green Heron. (Type, Plate III.) Eggs, 3 to 5, ellip- 

 tical, greenish blue ; 1.00 -|- 1.45 to 1.25 -(- 1.00. Breeds along 

 both coasts of North America, from Canada and Oregon, south- 

 ward, to Northern South America, the Bahamas and West 

 Indies. 



202. Black-crowned Night Heron, Nycticorax nycti- 

 corax nceviKS. Eggs, 3 to 6, varying from oval to elliptical, 

 bluish green; 1.35 + 1.90 to 1.55 -|- 2.15. Breeds from the 

 British Provinces, southward, to the Falkland Islands, inclu- 

 ding a part of the West Indies. 



203. Yellow-crowned Night Heron, Nycticorax violacea. 

 Eggs, 3 to 6, elliptical, yellowish green ; 1.80 + 2.25 to 1.65 

 -}- 2.25. The yellowest of all the Herons' eggs. Breeds from 

 the Carolinas and lower Ohio valley, southward, to Brazil; also 

 on the Bahamas, in April and May. 



