When I was young, swarms of field crickets would invade our towns, causing car accidents and generally being a major nuisance. Today, that annual plague is no more - the major reason I believe is because of the feeding habits of both the Cattle Egret and White-Faced Ibis. Local experts with the Imperial Irrigation District estimate each bird can consume as much as a quart of crickets per day!
In the wilds of Africa, they would follow rivers as guidelines to their roosting and feeding areas. Now I observe them using local highways and roads as guides too!
