498 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 



Followiug are the extreme and average measurements of the series 

 of adult males of the Costa Elcan " Quezal" which I have just examined : 



Minimum. I Average. I Maximum. 



Longest plumes, from point of insertion 19. 00 



Lengtli of taU proper 7. 50 



Lenglti of wing (11 specimens) 8.00 



25.50 

 7.74 

 8.14 



29.75 

 8.50 

 8.50 



Common on Irazu at an altitude of about 8,000 feet. Note resembles 

 that of a parrot. A shy and, for the most part, silent bird, much 

 sought after by native hunters for its brilliant plumage. 



Twelve specimens secured during the month of March, 1882. 



28. Crotophaga sulcirostris Sw. 



Here, as elsewhere in Costa Eica, this is among the most familiar of 

 all birds. 



No. 55. March 6. 



No. 62. March 8. 



No. 73. $ ad. March 10. 



No. 74. 9 ad. March 10. 



No. 75. March 10. 



No. 76. $ ad. March 10. 



28. Piaya cayana mehleri (Bp.). 



Common. Generally silent, but it occasionally utters a loud, clear 

 cry. Jris red. 

 No. 34. $ ad. March 1. 

 No. 45. March 3. 



29. Tinnunculus sparverius (Linn.). 



Probably the most abundant hawk of the region. 

 No. 54. March 6. 



30. Columba albilineata Gray. 



Apparently not common, as only one specimen was seen. That was 

 shot in a group of trees in a pasture near " Cot." 

 No. 43. $ ad. March 3. 



31. Engyptila verreauxi (Bp.). 



Eather common along the roads. Iris yellow. Legs red. 

 No. 16. February 27. 

 No. 71. 9 juv. March 9. 



32. Geotrygon costaricensis Lawr. 



Not very common. Found only in the densest parts of the forest, on 

 the mountain side. Habits terrestrial. Iris and legs red. 

 No. 32. 5 ad. March 1. 

 No. 33. $ iuv. March 1. 



