78 Proceedings of the Royal Physical Society. 



respondent in the Banda Oriental a further collection of eggs, 

 accompanied, as previously, by the skins of the parent birds, 

 and for the identification of the latter I am again under obli- 

 gation to Mr Sclater. Continuing the numbers from my 

 former paper, they are as follows : — 



25. Tinnunculus cinnamominus, Sw. — native name "Hal- 

 con." — This is a southern form of T. sparverms, the American 

 Kestrel, which latter is found throughout the whole of IsTorth 

 America, but is replaced by the present species throughout 

 the southern division of that Continent from the Straits of 

 Magellan to New Granada, the States of Venezuela and 

 Guiana excepted. T. cinnamominus differs in plumage from 

 the typical T. sparverius chiefly by the want of the rufous 

 patch on the crown in both sexes, which part in the former 

 species is of a slatey grey colour. Another distinguishing 

 mark of the present species is the less average depth of the 

 black subterminal bar on the tail of the adult male. In 

 habits it somewhat resembles our common kestrel, especially 

 in the habit which has gained for the latter the name of 

 "windhover." In flight it is very rapid, almost equalling 

 that of a pigeon. It is particularly destructive to poultry, 

 and the specimen sent me was killed in the act of carrying 

 off a young turkey. Its food otherwise consists of mice and 

 small birds, and Gibson has known it to feed on locusts in 

 Buenos Ayres. It is resident at Tala, though migratory in 

 the Argentine Eepublic. 



Clutch of three eggs, taken 15th November 1880, from 

 an old nest of the green parroquet {Bolborhynchus monachus), 

 situated in a lofty Tala tree, about 15 feet from the ground. 

 The largest of these measures 1\^ x 1^%- inch, the smallest 

 1-i^ X 1-^ inch. They are nearly spherical in shape, and in 

 colour are lighter than those of the common kestrel, and 

 more resemble those of the lesser kestrel {T. cenchris). One 

 of T. sparverius is figured in the His, 1859, PL xii.. Fig. 7. 



This hawk builds no nest, but lays in the old or deserted 

 one of some other species. 



26. Progne chalylea (Gm.). — This species is known to the 

 natives, in common with the other swallows, as " Golondrino." 

 It is found throughout South America, from the Argentine 



