F/ 6.3, 1/640, ISO 200.
Did you here about the mathematician who was afraid of negative numbers?
He will stop at nothing to avoid them.
Interesting Fact: The oldest Snowy Egret on record was at least 17 years, 7 months old. It was banded in Colorado in 1970 and found in Mexico in 1988. ( https://www.allaboutbirds.org/guide/Snowy_Egret )