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I’d like to introduce you to a diminutive heron, the Cattle Egret Bubuclus ibis. The Cattle Egret is native to Africa, where it is a familiar sight among herds of large mammals. Cattle Egret is more closely related to herons in the genus Ardea then the species termed egrets in the genus Egretta.
but there are other birds, many stopping to stay, many others moving to SouthAmerica. We don’t see so many on the ground but with both Yellow and Black-billed hightailing it to SouthAmerica, you know that their long wings are carrying these caterpillar gourmands far overhead and straight on to Colombia.
There was the Botteri’s Sparrow giving a larger Canyon Towhee a piece of its mind, on my way into town: The reservoir itself was underwhelming, only offering me a collection of white Egrets (Cattle, Snowy and Great) and a single Great Blue Heron. Of course, not everything interesting is a bird.
It has no avian endemic species (only one subspecies), and its most spectacular birds like Venezuelan Troupial and Fiery-Topaz Hummingbird can be found in greater numbers across a narrow strait in mainland SouthAmerica, where you can pick up an additional 400-500 species besides. With few exceptions, almost no one does. Of course not.
And while all three of our common Egrets ( Great , Snowy , and Cattle ) are to be seen everywhere you look, only the American White Pelicans are as common as the Shovelers and Pintails. And Wilson’s Phalaropes are supposed to spend the winter in SouthAmerica, but nobody told this group. How many were there?
The lush pastures of the Aripo Livestock Station sustained herds of happy Buffalypso , a special breed of T&T beef cattle named for their Water Buffalo heritage and Calypso-happy country. Where we entered the area, the savannah seemed more like Aripo Ranch. In fact, it was. In that regard, Aripo was amazing.
One of this species’ many peculiarities is that it has a digestive system unique amongst birds: Hoatzins use bacterial fermentation in the front part of the gut to break down the vegetable material they consume, much as cattle and other ruminants do. We found Black-collared Swallows breeding in cracks among the lower riverside rocks.
Found throughout SouthAmerica in ever-dwindling numbers these extremely beautiful birds – threatened by habitat destruction and collection for the wild bird trade – are often difficult to see and hard to find. These threats are further exacerbated by the naturally low reproductive rates of these cavity-nesting birds.
We remember starlings not skylarks, House Sparrows not Eurasian Tree Sparrows , Cattle Egrets not… well, whatever we’ve forgotten because it didn’t do as well as the Cattle Egrets. Renato Mar 13th, 2011 at 8:36 am Nice post, the Collared Doves also make it to SouthAmerica.
The population of parrotlets they studied was located on one of the many huge hatos (cattle ranches) in the Venezuelan llanos, a vast swath of flat flooded savannah in the central third of the country that drains into the Rio Orinoco.
They used to be but a burgeoning population in need of more living room and land for cattle and crops destroyed a fair portion of those rainforests during the 20th century. Over there on the Caribbean (that’s what we call the Atlantic Ocean in Costa Rica), the lowlands are supposed to be blanketed in lush, over-vegetated rainforests.
Even the names we give to some birds reflect their dependence on the cultivated landscape – we have Barn Owls ( Tyto alba ) and Barn Swallows ( Hirundo rustica ) over much of the world, and Orchard Orioles ( Icterus spurius ) in the Americas really do have a fondness for fruit groves.
Image by Adam Riley A Cattle Egret hunts grasshoppers and other insects in a field of wildflowers in West Coast National Park. It is common in the Fynbos and succulent Karoo regions. Image by Adam Riley Another common members of this region’s avifauna is the cute Cape Bunting.
uses the zoogeographical ecozones and denotes North, Central and SouthAmerica (Nearctic and Neotropical realms) as western and the rest of the world (Palearctic, Afrotropical, Indomalayan, Australasian) as eastern. Cattle Egret – Bubulcus ibis. Airport Mangroves. 01 Jan 2017. Tricolored Heron – Egretta tricolor.
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