DISTRIBUTION OF THE BIRDS OF VERA CRUZ. 547 



Dendroica nigresccns. Orizaba ; rare. 



Dendroica coronata. Everywhere. 



Dendroica Audubonii. Tecamaluca, near Orizaba. 1400 metres. 



Dendroica Blackburnice. Orizaba. Very rare. 



Dendroica (estiva. Rare at Orizaba ; common on the plateau. 



Dendroica dominica. Orizaba, where it arrives about the 10th of August. 



Seiurus aurocapittus. Orizaba and other places. 



Seinrus noveboracensis. Orizaba and other places. 



Geoihbjpis irichas. Orizaba. 



Icteria virens. Vulg. Arriero. 



The data which I possess in regard to this species do not enable me to say with certainty 

 whether the individuals I have seen are really referable to the I. virens, and are therefore 

 migratory, or whether they should be regarded as belonging to the species described by 

 Bonaparte and Lichtenstein under the names of I. Velasquesd and auricollis. 



Mijodioctes mitratus. Orizaba. 



Myodhctes pusillus. Everywhere. 



Setophaga ruticilla. Observed everywhere in the hot region. 



HlRUNDINIDiE. 



40. Progne subis. Alpine region. Resident in the alpine region to which it seems to con- 

 fine itself. 



41. Progne leucogaster. Hot and temperate region. This species which we find on the 

 shores of both oceans, does not extend into the department of Vera Cruz farther than to 

 the height of 1200 metres. It nests at Orizaba in the steeples of churches and old build- 

 ings. 



42. Pelrochelidon Swainsonii. Region of the plateau. This species, peculiar to the plateau, 

 is rarely found within the department. 



43. Ilirundo horreorum. Region of the plateau. The same is also true of this species. 



44. Taclvjcineta thalassina. Hot and temperate region. The plateau. We find this swal- 

 low at almost all heights, and almost everywhere very abundant. 



45. Taclvjcineta bicolor. The plateau of Mexico is probably the favorite residence of this 

 swallow, which very rarely extends into Vera Cruz. 



46. Stelgidopteryx fulvipennis. This species is sufficiently distinct from the preceding (45). 

 I also think that the S. serripennis is found in the department, coming in winter. 



The powers of locomotion and the migratory instincts which the Hirundinidce possess to 

 so high a degree, render it difficult to fix with exactness their geographical distribution 

 respectively. Among those which I have mentioned the two species of Progne are the 

 only ones whose limits appear to me to be clearly fixed. 



Vireoniile. 



47. Neochloe brevipennis. Temperate region. This exceedingly rare bird has only been 

 found, so far as I am aware, at Orizaba, by M. Botteri. In the course of many years he 

 was able to procure but a very few specimens. 



48. Vireosylvia flavoviridis. Temperate region. Alpine region? I have found this bird at 

 the height of 1400 metres anions the mountains in the neighborhood of Orizaba. 



