Bubulcus Ibis <LEGIT - PICK>

: By the 1940s, they reached Florida and spread across North America.

: Some ranchers prefer egrets over pesticides for natural fly control. bubulcus ibis

Their success comes from a unique "commensal" relationship with larger animals. : By the 1940s, they reached Florida and

: They trail behind cattle, horses, and tractors to catch insects stirred up by movement. : By the 1940s

: They often stand directly on an animal's back to eat ticks and parasites.