16 PROCEEDINGS OF THE NATIONAL MUSEUM vol.79 



HYLOCICHLA USTULATA SWAINSONI (Tschudi) 



Olive-backed thrush 

 Turdus swainsoni Tschudi, Faun. Per., Orn., 1845-1846, p. 28. (New Jersey.) 



A male collected on Swan Island, April 19, 1929, is the first record 

 of this North American migrant on this island. The olive-backed 

 thrush has been found casually in Cuba during migration ; its regu- 

 lar route of migration carries it through Mexico and Central Amer- 

 ica to northern Argentina. 



This specimen was indistinctly seen and was secured in the hope 

 that it might be Mwiocichla^ which was among the desired material. 



VIREO CRASSIROSTRIS CRASSIROSTRIS (Bryant) 



Large-billed vireo 



Lamvireo crassirostris Bryant, Proc. Bos.ton Soc. Nat. HLst., vol. 7, 1859, 

 p. 112. (Nassau, New Providence Island, Bahama Islands.) 



An adult male was collected on Grand Cayman, April 17, 1929. 

 Bangs,^^ after comparison of a large series, has concluded that the 

 bird of Grand Cayman, which has been recognized as Vireo crassi- 

 rostris alleni Cory,^^ is not different from the highly variable typical 

 crassirostris that ranges widely through the Bahamas, 



The specimen secured was the only one which came under our 

 observation. The bird was in thick underbrush, and attention was 

 called to it by its note, which suggested that of the white-eyed vireo. 



VIREO CRASSIROSTRIS APPROXIMANS Ridgway 



Old Providence large-billed vireo 



Vireo approximans Ridgway, Proc. U. S. Nat. Mus., vol. 7, July 29, 1884, 

 p. 179. (Old Providence Island, Caribbean Sea.) 



A male and a female were prepared as skins on Old Providence 

 Island, April 24, 1929. The skull of a third specimen was preserved. 

 As this vireo is rare in collections it is of interest to record the fol- 

 lowing measurements: Male, wing, 61.0; tail, 51.1; culmen from 

 base, 14.5; tarsus, 21.8 mm. Female, wing, 58.0; tail, 46.9; culmen 

 from base, 14.4; tarsus, 22.7 mm. These are the first examples of 

 this race to come to the United States National Museum. 



During certain parts of the day this vireo was an incessant singer 

 with comparatively short, irregular intervals between songs. The 

 specimens were taken in rather thick undergrowth bordering a 

 stream which at that time was merely a chain of shallow pools. 



"Bull. Mus. Comp. ZooL, vol. 60, 1916, pp. 314, 315. 



^ Vireo alleni Cory, Auk, 1S86, p. 500. (Grand Cayman.) 



