Breeding Cattle Parrots Research 
10,000 Birds
DECEMBER 1, 2022
Black-bellied Whistling-Ducks , Muscovy Ducks and Blue-winged Teals were around us, together with Green , Great and Little Blue Herons , Cattle and Great White Egrets , Black-crowned and Yellow-crowned Night-Herons , plus one locally rare Pinnated Bittern in the floating vegetation, as well as several dozen Neotropical Cormorants.
10,000 Birds
JULY 17, 2012
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. You don’t really know a bird until you’ve studied it on its breeding grounds. The Auk 108: 863-871.
10,000 Birds
OCTOBER 7, 2014
The page-long entry on Geographic Variation offers descriptions of the five groups, in painstaking detail, differentiating subspecies of each group, articulating differences between males and females within each subspecies, drawing out winter and breeding ranges with the help of Lehman’s maps.
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