1882.] FRUM THE ARGENTINE REPUBLIC. 619 



142. Trogon surucura, Vieill. 



2' Concepcion, Misiones, Arg. Rep., Juue 21, 1881. 



Iris dark. 



Although for several days I stalked these birds, hearing their 

 call, yet I could only manage to secure one specimen in the dense 

 forest. 



143. Crotophaga ani, Linn. 



cJ. Oran, Salta, Arg. Rep., Nov. 9, 1880. 



2. „ .., „ Nov. 18, 1880. 



Iris sepia. 



This bird flies in flocks, and is usually observed in close juxta- 

 position with a flock of the Guira piririgua in the open country ou 

 the outskirts of the cultivated ground, where it perches ou bush 

 or hedges. 



144. Guira piririgua (Vieill.). 



(S . Flores, Buenos Aires, Arg. Rep., April 8, 1881. 

 $ . Salto, Buenos Aires, Arg. Rep., Oct. 8, 1881. 



Iris deep orange. 



The native name of this noisy bird is " Uraca ;" and it is found 

 abundantly all over the Republic, commonly flying in flocks of six 

 or seven. Here, in a willow tree, a nest was discovered, built of 

 twigs, containing seven eggs, which was quite open above, with a 

 very deep basin, and was hued with dry leaves, principally of the 

 " Eucalyptus ;" but in other provinces different leaves are em- 

 jiloyed. The IJracas are sometimes tamed and kept in houses to 

 rid them of iusects; but their noise and dirty habits disqualify them 

 for occupying the position of favourites. 



The egg is of an oblate spheroidal form, equally blunted at both 

 ends, with a slightly raised white chalky network equally diffused 

 over a pale green ground. 



Meas. : axis 42 millim., diam. 32 millim. 



145. PiAYA cayana (Linn.). 



S 5 . Concepcion, Misiones, Arg. Rep., June 21, 1881. 



Iris crimson, 



1 found this tame bird rather rare round here, but usually met 

 with it in the dense woods, where, on account of the slowness of its 

 movements, it was easy to shoot, although difficult to distinguish. 



Very seldom seen in flight, it hops trom twig to twig, using its 

 fine tail at the end of the leap to steady its perch. 



146. CocCYZus minor (Gm.). 



6 . Salto, Buenos Aires, Arg. Rep., Oct. 17, 1881. 



Iris dark. 



Not uncommon in the province of Buenos Aires, especially about 

 Monte Grande; but in other parts of the Republic I do not 

 remember often having met with it. Its nest is built in low trees 

 or hedges, much resembling that of the Dove in outward appearance. 



