| This formerly Old World species has a most unusual history in the New World. "Cattle Egrets" apparently arrived in South America (likely from Africa) around 1930, perhaps by riding on a ship(s). At any rate, the species greatly expanded in numbers in the Western Hemisphere, filling a vacant niche (feeding around cattle and other livestock), and moved northward. It was first found in North Carolina in Bladen in Apr 1956 and was noted nesting at Battery Island (Brunswick) in Jun of that year. By the 1970's, when systematic colonial waterbird surveys began along the coast, the species was a fairly common to locally common breeder. Numbers, however, have declined since the 1990's, probably owing to the loss of farmland -- especially cattle pastures -- in the proximity of breeding colonies. Even so, the species currently nests on scattered coastal islands and at a few inland colonies in the lower Coastal Plain. It is sporadically seen farther inland, both in spring and late summer. As indicated above, the species favors feeding on insects that are kicked up around the feet of livestock, such as at cattle pastures and feed lots, but they also feed in recently plowed fields and in short-grass areas, such as large lawns. Occasionally, they are seen at pond margins and other wetlands, but nearly all white-plumaged waders in such wet areas are Great or Snowy egrets or immature Little Blue Herons.
NOTE: The AOS (formerly AOU) split the former Cattle Egret into two species in 2024; the one in North America is the Western Cattle-Egret. |