^°'ig^^^] BowDiSH, Birds of Porto Rico. 36 I 



,33. Zenaidura macroura. Mourning Dove. — Common everywhere. 



. 34. Zenaida zenaida. Zenaida Dove. — Found abundantly on Mona 

 Island, and probably common in other suitable localities. One shot near 

 Aguadilla. 



T 35. Columbigallina passerina. Ground Dove. — Common every- 

 where. The nests are built well above the ground, probably to avoid the 

 depredations of the mongoose, and for a bird of this family are usually 

 quite substantial. Nesting dates are : Near San Juan, July 19, 1899 ; 

 eggs two, fresh ; nest twelve inches above ground in a dead bush in bush- 

 grown pasture. Measurements of nest: diameter 3.63X2.13 inches; 

 depth 1.25 X .50. Aguadilla, June 9, 1900 ; eggs two, incubation advanced ; 

 nest eight feet from the ground, on a horizontal branch of a mango tree, 

 in an open field. Measurements: diameter 4.75 X 2.13 ; depth 1.63 X .63. 

 June 9, 1900, ten feet from ground. Incubation advanced. June 24, on 

 top of stump among sprouts, nine feet from ground, and close to a house. 

 Eggs fresh. July 12, two fresh eggs, eight feet from ground. July 22, 

 two eggs, incubation advanced ; twelve feet from ground, on extreme tip 

 of a mango limb, near a house. July 27, two fresh eggs, twelve inches 

 from ground in tiny thorn bush, in a cultivated field. Mona Island, Aug. 

 II, 1901, two eggs, about one half incubated. Nest three feet from ground 

 in a bush near a path ; also a single fresh egg on bare rock in path. 



■ 36. Geotrygon chrysia. Qlail Dove. — I only saw this species on 

 Mona Island but it is doubtless found on the main island. 



• 37. Geotrygon montana. Ruddy Qliail-Dove. — Noted at Vieques 

 (where I shot a male Dec. 30, 1S99), at Aguadilla, and very common on 

 Mona Island. 



- 38. Buteo borealis. Red-tailed Hawk. — Nowhere rare, apparently 

 quite abundant in the vicinity of Las Marias. I secured only two speci- 

 mens, a male, Vieques, Jan. 26, 1900, the stomach containing the bones 

 and hair of a rat, and a female at Mayaguez, July 31, 1901, the stomach 

 containing the fur of a rat. This specimen was sent to the National 

 Museum. Comparison of a series with specimens from the United 

 States, may develop the fact that the birds from Porto Rico are entitled 

 to subspecific recognition. 



Near Catano, March 27, 1899, I found a nest ready for occupation. 

 It did not differ from nests of this species in the States, and was built in 

 a large tree about 50 feet from the ground, on a wooded hillside. 



.39. Falco dominicensis. Cuban Sparrow Hawk. — Common in all 

 localities visited. Feeds chiefly on small lizards, grasshoppers and large 

 insects. 



.40. Pandion haliaetus carolinensis. American Osprey. — Not abun- 

 dant. 1 noted a pair at Vieques and secured the male, Dec. 31, 1899. 

 Stomach empty. At Mona Island I saw the foot of one which had been 

 shot there. 



• 41. Asio portoricensis. Porto Rican Owl. — I saw a bird of this spe- 

 cies in the marsh grass at San Juan Bay, Feb. 12, 1900. This was the 

 only specimen noted. 



