334 Cherrie on Costa Rican Birds. [October 



38. Myiarchus crinitus. — I have only one record, that of a male taken 

 Nov. 24, 1889. 



39. Contopus borealis. — I have notes for only five dates, and but a 

 single individual was seen each time. The first was Oct. 4; second, Oct. 

 17; third and last in 1889, Oct. 27. None were seen until April 27, 1890, 

 when I took a fine female; it was very fat. A male was taken May 7. 



40. Contopus virens. — In the spring of 1SS9 the last one, a female, was 

 seen April 11. The first to return was a male on August 21. This year 

 I took the last April 29. They are never common. 



41. Contopus richardsonii. — I find such difficulty in separating C. 

 virens and C. richardsonii that it is only typical examples that I can refer 

 to either with any certainty that I am correct. I took the first typical 

 richardsonii Oct. 27, 18S9. From that time until the middle of November 

 they were much more frequently met with than C. virens. None were 

 noted after Dec. 1. 



42. Empidonax flaviventris. — Have taken only one, a male, Oct. 27. 

 1889. 



43. Empidonax acadicus. — Took two in the fall of 18S9, one Sept. 17, 

 the other Oct. 4. In the spring of 1890, in the early part of May, they 

 were very common, frequenting the fringe of woods along the river bank- 

 May 11, I took six and saw others. All were very fat. 



44. Callothrus robustus. — Common and permanent resident at San 

 Jose. Seems to have a preference for the nest of Buarremon gutturalis. 



45. Sturnella magna mexicana. — A common bird, breeding in the vici- 

 nity. During the worst of the rainy season in 1889, from the last of July 

 until the middle of November, they disappeared, but were found in other 

 localities. Several were noted Nov. 24, but they were not again common 

 until the first of March, 1890. 



46. Icterus spurius. — I have no spring notes for 1SS9. I took the first 

 fall migrant, a female, July 31. The second noted was a male Aug. 13. 

 By August 25 they were tolerably common, but they disappeared immedi- 

 ately after that, being rarely seen. The last were seen March 2, 1S90. 



47. Icterus galbula. — Quite rare. The first seen in the fall of 18S9 

 was on Oct. 27; the last in the spring, March 2, 1890. 



48. Habia ludoviciana. — Oct. 23, 1SS9, I noted the first ariival, a 

 young male. They were then seen occasionally until Feb. 3, 1890, when 

 1 took the last, a female. 



49. Passerina cyanea. — There are two skins in the museum collection 

 labelled respectively "San Jose. Nov. 5, 1S87," and "San Jose, Nov. 17, 

 18S7. A. Alfaro." I have not noted the bird myself. 



50. Spiza americana. — My only record is for Sept. 29, 18S9, many 

 having perished the night before. Almost all were young birds, with a 

 slight preponderance of males. Mr. J. C. Zeledon reported them a month 

 before from Pozo Azul. 



51. Euphonia elegantissima. — There are two specimens in the museum 

 collection, both males, one without date, the other labelled "Dec. 20, 

 1SS4, Anastasio Alfaro." 



