OCT., 1909. BIRDS OF THE LEEWARD ISLANDS CORY. 219 



The crown in birds from Testigos, Blanquilla, and Tortuga is fully as 

 dark as in D. r. capitalis from Barbados, but the orange-brown streaks 

 on the under parts are narrower and more restricted than in that 

 form. While it is probable that these birds represent fairly good 

 insula forms and are worthy of subspecific recognition, I do not feel 

 it is desirable to separate them, for the present at least, and have 

 referred them all provisionally to rufopileata. 



The comparative measurements of birds from the different islands 

 are as follows: 

 ISLAS DE AVES: 3 specimens (males); wing, 2.25 to 2.37; tail, 1.80 



to 1.85; bill, .33 to .37. Apparently intermediate between 



rufopileata and obscura. 

 ARUBA, CURASAO, AND BONAIRE: 20 specimens (males); wing, 2.23 



to 2.37; tail, 1.78 to 1.90; bill, .33 to .37. 

 ORCHILLA: 4 specimens (males); wing, 2.24 to 2.35; tail, 1.82 to 



1.88; bill, .35 to .37. 

 BLANQUILLA: 7 specimens (males); wing, 2.15 to 2.27; tail, 1.85 



to 1.95; bill, .35 to .37. 

 TORTUGA: 4 specimens (males); wing, 2.20 to 2.26; tail, 1.80 to 



1.90; bill, .35 to .38. 

 TESTIGOS: 5 specimens (males); wing, 2.24 to 2.32; tail, 1.83 to 



i .90; bill, .35 to .38. 



Family Mimicl?e. 



Mimus gilvus rostratus Ridgw. 



8 specimens, 4 cT, 3 9 , i ? 



TORTUGA ISLAND. 



The Island of Tortuga is situated 42 miles northeast of Cape 

 Codera, Venezuela, and about 48 miles west of Margarita, and is 

 about 12 miles long by 5 miles broad at its widest part. It is about 

 100 feet high at the eastern end, while the western part is low. The 

 vegetation in the interior is scattered, being principally cacti of sev- 

 eral species. Mr. Ferry writes: "Bird life is abundant here. The 

 western portion of the island is lower and more plain-like and more 

 sparsely covered with vegetation than the eastern part. There is 

 a heavy mangrove forest on the southeastern side where a colony of 

 Brown Pelecans nest." 



