18 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 134 
Family FREGATIDAE: Frigate-birds 
FREGATA MAGNIFICENS Mathews: Magnificent Frigate-bird, Tijereta 
de Mar 
Fregata minor magnificens MATHEWS, Austr. Avian Rec., vol. 2, Dec. 19, 1914, 
p. 120. (Barrington Island, Galapagos Islands.) 
Frigate-birds were noted regularly, but usually only one or two 
per day. On February 4 I saw one at Isla Rancheria, and on the 
journey to Coiba and return I observed them in numbers off Punta 
Mala. On one occasion I watched for several minutes as one pursued 
an agile royal tern over Bahia Damas, without making the smaller 
bird disgorge. 
Family ARDEIDAE: Herons 
ARDEA HERODIAS Linnaeus: Great Blue Heron, Garzon Cenizo 
Ardea Herodias LINNAEUuS, Systema naturae, ed. 10, vol. 1, 1758, p. 143. (Hud- 
son Bay.) 
These large herons were seen feeding or flying along the beach 
near the Headquarters, or in a wet meadow inland, on four occasions 
between January 11 and February 3. All were wary and remained 
in the open where they had a clear view for some distance around. 
From their rather casual occurrence it appeared that they had reached 
Coiba by chance while in flight along the mainland coast. I watched 
three for some time and observed that they were decidedly dark- 
colored, indicating that they were probably of the typical race Ardea 
herodias herodias, which is the one to be expected. 
CASMERODIUS ALBUS EGRETTA (Gmelin): Common Egret, 
Garza Blanca 
Ardea Egretta GMELIN, Systema naturae, vol. I, pt. 2, 1789, p. 629. (Cayenne.) 
These large egrets were seen regularly along the beach or occa- 
sionally in wet meadows inland. Larger size and yellow bill dis- 
tinguish them from the other white herons. This species is called 
garza real, also. 
LEUCOPHOYX THULA (Molina): Snowy Egret, Garceta Blanca 
Ardea Thula Motina, Saggio sulla storia naturale del Chili, 1782, p. 235. 
(Chile. ) 
This egret was recorded in the small flocks of white herons that 
were common along the beaches, being marked by its black legs, 
yellow feet, and black bill. On January 30 I identified a dozen. 
