194 Field Columbian Museum — Zoology, Vol. VII. 



winter, as their breeding range is much to the northward of 

 Guatemala. This account of the water birds of this region was 

 kindly furnished me by Dr. Ned Dearborn* of this museum. 



Family Podicipedidse. Grebes. 



Colymbus dominicus brachypterus Chapman. Short-winged 

 Grebe. 



A small colony of Short-winged Grebes frequented an area of 

 surface vegetation in a small bay of Atitlan near Panajachel, 

 whence several specimens were collected in April. 



Colymbus nigricollis californicus Heermann. American Eared 

 Grebe. 



American Eared Grebes were found in small numbers at the 

 western end of Amatitlan, and more common and generally dis- 

 tributed near Panajachel on Atitlan. At this latter place, the 

 Indians, by dextrous paddling in small canoes, tire out and 

 capture these Grebes after a short but lively chase. The Grebes, 

 as well as all the other species of water birds, remain near the 

 shore when undisturbed, as the rapidly declining bottom of the 

 lakes allows them only a narrow margin to feed upon. 



Family Aiiatidte. Ducks. 



Querquedula discors Linnaeus. Blue-winged Teal. 



One specimen of Blue-winged Teal, taken on Atitlan by Mr. 

 Barber in February, was the only duck encountered that could be 

 identified. A flock of several hundred ducks was seen at Ama- 

 titlan, but they were so wild that it was impossible to approach 

 near enough to make out what they were. The same uncertainly 

 prevailed with regard to a few other ducks at Atitlan. 



Family Ardoidw. Herons. 



Butorides virescens Linnaeus. Green Heron. • 



Green Herons were found scatteringly in all parts of the 

 ♦For an account of the birds collected on this Expedition, see Publica- 

 tion X35 Field Mus. Nat. Hist., Ornithological Series, Vol. i, No. 3, 69 to 138, 

 1907. 



