BACKYARD BIRDING IN MERIDA, YUCATAN AND BEYOND – JOCKEYS AND # 1: CATTLE EGRET

Strung out in a field like discarded bowling pins, the gregarious Cattle Egret hunts its main prey of insects like grasshoppers, crickets, and flies, plus spiders and small animals. Unlike other herons and egrets that typically feed in or along water, this 20 inch bird is more common in dry fields and grasslands and may use grazing animals to flush up insects or other goodies to be captured. However, it will also feed in flooded fields and marshes for frogs, fish, tadpoles, crayfish, and other small vertebrates including nestling birds, lizards, and snakes.

 

Cattle Egrets look like discarded bowling pins in a field

 

The Cattle Egret Latin name, Bubulcus, translates “belonging to cattle.” In North America we tend to think of this egret with cattle or horses. A variety of common names portrait the grazing animals it associates with whether domestic or wild such as elephant bird, rhino bird, camel bird, hippo bird, cow bird, capybara bird, and many others. Sometimes it forages with ostriches or other large birds. Often called “tick bird,” research indicates the bill structure isn’t adapted for tick removal but could pick off crawling ticks.

 

Listen to a common Cattle Egret call of “rick rack” which is not the way to call cattle:

https://www.xeno-canto.org/403813  (click on white arrow, then click on gray sonogram)

 

This egret may dine alone or in a flock of hundreds. Research indicates a single egret foraging with tractor/farm equipment in a field results in a higher capture rate of more prey than any other method. The next best rate involves a single egret to select and defend only one grazer. A “# 1” so to speak. About 83% of Cattle Egrets jockey for position for the front of a grazing mammal, 13% at the side and only 4% at the back. One study suggested that this species chooses mammals that average 5-15 steps/minute.

 

Cattle Egrets capture the most prey when associated with working farm equipment
A single Cattle Egret will even defend its #1 animal against other egrets
A Cattle Egret jockeys for position with a grazer
About 83% of Cattle Egrets vie for the front of a grazing animal

But would you consider it also stands adjacent to airport runways to nab prey scattered by airplanes? Or that it also follows lawn mowers that can scare up quarry as well? Plus as an opportunistic feeder everything seems right down its alley because, it also feeds at dumps, golf courses, parks, roadsides, and sports fields.

 

More closely related to herons than whitish egrets, this stockier and shorter-necked heron is a small white heron with a yellow bill and black legs as a non-breeding adult.

 

Black legs of nonbreeding Cattle Egret

However, in the breeding season it can exhibit color changes in bare facial skin, eyes, and legs. During a three week courtship, the larger male wears more “make-up” since it sports more intense breeding colors than the female.  Eyes and legs turn red and the yellow bill turns red at the base while the lores show purplish pink.

 

Bill, eyes, and lores change color during Cattle Egret courtship

 

Buffy-colored plumes adorn the back, neck and crown.(Those plumes remind me of “hair on” the back; maybe that’s why they’re called herons.) However, color changes may or may not be synchronized among pairs.Then the bills, eyes, and legs eventually fade to yellow legs and bills during the rest of the breeding season.

 

Red legs and brightly colored bill of Cattle Egret during courthship phase

 

Legs of Cattle Egret change from black to red and then fade to yellow

 

After Cattle Egret courtship, eyes, bill, and legs fade to yellow

 

Although considered a dry habitat bird, it seems to prefer nesting in trees or shrubs close to water, often on islands with other herons and egrets or cormorants, anhingas, ibises, and storks. Both a male and female may build their bowl-shaped nest but the female architects most of the nest from single sticks brought by the male.(Yes, I used several bowling terms in this article.)

 

Cattle Egret with nest material

 

Bowl-shaped nest with fading colors of bill and legs of Cattle Egret

 

A Cattle Egret threatens a Tricolored Heron near its nest

 

Cattle Egrets nest with other herons and also ibis

Sometimes a large colony can displace other herons from a roost and also from a rookery when it overpowers nesting sites or claims other nests. In this series below, a young Great Egret reclaims its home nest from a Cattle Egret.

 

Herons and egrets share roosts and rookeries

 

Herons and egrets share roosts and rookeries

 

This Great Egret chick returns to defend its home

 

The Great Egret chick successfully keeps its home

 

Young may strike out on their own at about six weeks and then fly thousands of miles. This dispersive behavior along with opportunistic feeding, and adaptations to a variety of habitats probably contributed to the worldwide expansion of this species from Africa.

 

Supposedly it reached South America in the 1870s. First nesting recorded in the USA in 1953 with sight records in Quintana Roo in 1956, and Campeche and Yucatan in 1963. It is a permanent resident with a winter migratory population in Yucatan.

 

Range expansion continues around the world, especially where forests are cleared and grazers introduced. It is spotted in Antarctica, flying across the Atlantic from Africa, and even in the Himalayan mountains at 15,000+ feet!

 

 

YOU CAN BENEFIT FROM NATURE IN YOUR OWN BACKYARD OR PARK WITHOUT FLYING THOUSANDS OF MILES. IF YOU DON’T ENJOY NATURE, YOU WILL HAVE ‘E-GRETS’.

 

 

DISCLAIMER: References REALLY do not agree on data about this species.

 

Sal a Pajarear Yucatán, Bird & Reserves of the Yucatan Peninsula, A Guide to the Birds of Mexico and North Central America, A Guide to the Birds of Costa Rica, Florida’s Birds, Sibley Guide to Bird Life and Behavior, Lives of North American Birds

 

 

https://birdsna.org/Species-Account/bna/species/categr/introduction?login

https://doi.org/10.2173/bna.categr.03

https://www.hbw.com/species/cattle-egret-bubulcus-ibis

https://neotropical.birds.cornell.edu/Species-Account/nb/species/categr/overview

https://www.allaboutbirds.org/guide/Cattle_Egret/lifehistory

https://www.audubon.org/field-guide/bird/cattle-egret

Paul Marvin, XC403813. Accessible at www.xeno-canto.org/403813

 

Cherie Pittillo, “nature inspired,” photographer and author, explores nature everywhere she goes. She’s identified 56 bird species in her Merida, Yucatan backyard view. Her monthly column features anecdotes about birding in Merida, Yucatan and also wildlife beyond the Yucatan.

Contact: all4birdies@gmail.com  All rights reserved, ©Cherie Pittillo

 



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