154 BIRDS OF LA PLATA 
Besides the twelve speciegtdescribed there are five 
more Ducks in Argentina, namely :—the Crested 
Duck, Sarcidiornis carunculata; Muscovy Duck, 
Cairina moschata; Black-headed Duck, Heteronetta 
melanocephala ; Rusty Lake Duck, Erismatura ferru- 
ginea; and White-winged Lake Duck, Nomonyx 
dominicus. 
All these species I knew, with the exception of 
the Crested Duck; but they were rare in my district 
and I could learn nothing of their habits from my 
own observation. 
ARGENTINE WOOD-PIGEON 
Columba picazuro 
Above pale brown; head and neck vinous; back of neck with 
white cross-bands which are edged with black; lower back and tail 
plumbeous ; wings plumbeous, larger coverts broadly edged with 
white; beneath pale vinaceous; flanks and crissum plumbeous ; 
length 14 inches, wing 8 inches. Female similar. 
Tus bird so closely resembles the European Wood- 
Pigeon in its appearance, habits, and language that 
I prefer in this book to drop the name of Picazuro 
Pigeon used in the former work (Argentine Orni- 
thology) and call it the Argentine Wood-Pigeon. The 
chief differences are the absence of the white collar 
and the strangely human-like sound of its notes. 
In summer they inhabit woods, and are seen in 
pairs or small parties, but in winter unite in flocks of 
