634 DR. H. BURMEISTER ON ARGENTINE ORNITHOLOGY. [DeC. 10, 



elongated, broad, rounded. First primary short, not longer than the 

 secondaries ; the second somewhat shorter than the fifth ; the third 

 somewhat longer than the same, and the fourth the longest of all ; 

 every one with four or five white bands on the inside, of which the 

 exterior is somewhat greyish. Secondaries of nearly equal size, every 

 one with five or six small whitish bands on the inside, which are 

 only clear white in the middle of the plume. Tail two inches longer 

 than the wings in position, black, with two large grey bands on the 

 upperside, and tlie same white on the underside, and a similar 

 margin at the end of the rectrices. Legs yellow, with black claws, 

 the outer toe of the same length as the inner one ; the tarsus covered 

 in front with small hexagonal scales. 



"Whole length, from the tip of the beak to the end of the tail, 

 18 inches ; beak 1 inch, wing 10 inches, tail 7 inches, tarsus 1^ inch ; 

 middle claw without the nail 14 lines, the nail 8 lines. 



5. Circus superciliosus, Temm. ; Syst, Ueb. ii. 116. 

 Not rare near Buenos Ayres. 



6. CoccYGUs ciNEREus, Vieill. 



Coccygus cinereus, Vieill. ; Azara, Apunt. ii. 368. no. 268 ; Burm. 

 Syst. Uebers. ii. 268. Anm. 2. 



This rare Cuckoo has been killed by my hunter sometimes in the 

 vicinity of Palermo, near Buenos Ayres. It is well described by 

 Azara, but the colours are not so clear as Azara says. The whole 

 body is greyish, except the anal portion and the inside of the wings, 

 which are yellowish, the iris red. As the tail is very short in rela- 

 tion to the size of the bird, and the eight inner primaries are equal 

 in length, the bird must make a separate section of the genus Coccy- 

 (jus, or a genus of itself. My hunter has also found the nest with 

 the eggs, which are of a uniform whitish green. 



7. Dendrobates ltgnarius, nob. 



Picus Ugnarius, Mol. Comp. Hist. Nat. Chil. i. 391 ; Burm. Syst. 

 Uebers. ii. 225. Anm. I. 



This little Woodpecker is found sometimes near Buenos Ayres, in 

 the willow bushes of the "Boca del Riachuelo" of Barracas. It 

 seems to be more fond of the southern parts of the province. 



8. Elainea albescens, nob. 



Pachyrhamphtts albescens, Gould, Zool. of the Beagle, iii. 50, 

 pi. 14. 



This bird has all the characters of an Elainea, and is very nearly 

 allied to E. modesta, from which it is only different in its somewhat 

 greater size, clearer colours on the underside, less green colour on the 

 back, and the want of the white colour at the bases of the head- 

 feathers. It is not rare in the vicinity of Buenos Ayres, where it 

 makes its nest in the summer, going during the winter to more 



