Bay Farm residents have come to know and love two species of heron that also call their neighborhood home. Both the great and snowy egret nest on Bay Farm Island near the lagoons that provide the birds with the small fish they need to survive. As the larger of the two species, the great egret Ardea alba stands nearly three feet tall and generally weighs about two pounds. Its cousin, the smaller snowy egret, Egretta thula, weighs about half as much. Observers can easily distinguish the great from the snowy egret.