F/6.3, 1/1000, ISO 640.

Great Blue Heron 

Why did the student wear eye-glasses in math class?

It improved DiVision !

Interesting Fact:  In flight the Great Blue Heron folds it neck into an “S” shape and trails its long legs behind, dangling them as it prepares to land or when courting. ( https://www.allaboutbirds.org/guide/Great_Blue_Heron/lifehistory )