Snowy Egret (Egretta thula) ユキコサギ
The Snowy Egret is native to North and South America. Adults are white have lacy feathers, yellow feet, black legs, and a black bill.
This Snowy Egret seems to be close to maturity. The bill is not very black and there is still some yellow on the legs. California 2017
Snowy Egret. California 2017