Cattle Egrets which are smaller than their cousins the Great White Egrets are birds that migrated over to the Americas in the late 1800’s from Africa. They are often seen in agricultural areas with large animals that are foraging for food. They follow cattle or other large animals and wait for their hooves kick up the dirt which dislodges small insects which then become food for the Cattle Egrets. Their diet is very diverse including grasshoppers, crickets, earth worms and ticks as well as fish and frogs when they are near wetlands.
They are much smaller than Great White Egrets with short stout bodies, yellow bills and yellow legs. Their dagger like bill is uniquely adapted to grabbing small insects and invertebrates while walking along the ground or on the backs of cattle. I took the pictures of the Cattle Egrets shown above in the Ft. Myers area of Florida. There is some good information about these birds on the All About Birds website or on Audubons Bird website.