A snowy egret searching for fish from a perch in the water. Remarkable ability to detect fish allows perching and observing and then flying out to pluck the fish from the water (most attempts successful).
A snowy egret making an approach for a limb landing in early morning light.
A limited number of perches puts them at a premium. More aggressive birds will displace less aggressive ones and take possession of the perch. These egrets are capable of locating fish from the perch and then flying out to pluck them from the water.