At first I thought this was a great egret in Houston’s Hermann Park in March. Eventually I realised that it is actually a snowy egret, which is somewhat smaller.
The way the wind has whipped up the neck and tail feathers makes for an interesting effect (click to enlarge).
According to Cornell Lab of Ornithology, snowy egrets have a black bill and yellow feet, whereas great egrets have a yellow bill and black feet. Hopefully I’ll remember that for next time!
I can't believe it! 
After writing this post, I was musing on what is the difference between the New World Snowy Egret and the Old World Little Egret. They are quite similar. This post by Ocean Wanderers gives an answer with photos: http://www.oceanwanderers.com/LTEGRT.html
LikeLike