peters: birds of the Dominican republic. 397 



4. Fregata magnificens Mathews. 



Rabijorcado. 



Frigate birds were occasionally seen near the coast sailing far 

 overhead. They were by no means common. 



5. IxoBRYCHUS exilis (Gmelin). 



A few Least Bitterns occurred in reedy swamps near the mouth of 

 the Yaqui River at Monte Cristi on February 20. None were taken 

 here nor was the species observed elsewhere. 



6. Ardea herodias repens Bangs and Zappey. 



Garza. 



The West Indian Great Blue Heron occurs rather sparingly on the 

 north coast. Several were found along the Yaqui River February 6. 

 A few others were seen at widely separated intervals along the shore 

 between Gaspar Hernandez and the Rio San Juan early in March. 

 Although no specimens were secured it is probable that all the 

 Blue Herons occurring in Santo Domingo are referable to this form. 



7. Egretta thula thula (Molina). 

 Garza blanca. 



I found this Heron rather uncommon. It was noted only at Monte 

 Cristi, February 6 and at the mouths of the rivers, Piedra, Ori, and 

 San Juan, March 3-14. In the latter localities the birds were ob- 

 served in small flocks, arising from the mangroves and flying out over 

 the water. 



8. Hydranassa tricolor ruficollis (Gosse). 



A Louisiana Heron flying into some mangroves near the mouth of 

 the Rio Piedra on March 13 was the only representative of the species 

 noticed. 



9. Florida caerulea (Linne). 



Rather common all along the north coast in suitable locations. 

 Their favorite habitat is the mangrove swamps bordering the streams. 



