234 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 9 s 



In 1939 I saw green herons near Tres Zapotes on four occasions, 

 March 13, 29, and 31 (when a male was taken) and April 3. Carriker, 

 in 1940, found them fairly abundant around the ponds and lagoons 

 and in the small tracts of swampy woods adjacent to Tlacotalpam, 

 where he took specimens on February 6, 9, and 19. He recorded them 

 also near Tres Zapotes and on May 7 shot a female along the small 

 arroyo above the village of Tapacoyan, on the lower slopes of the 

 Cerro de Tuxtla. The latter had the ovaries slightly enlarged. 



The five specimens taken belong to the widely distributed eastern 

 race. Whether the bird from Tapacoyan was near its breeding 

 grounds, as indicated by the date and its condition, or whether it was 

 a belated northern migrant is uncertain. 



NYCTICORAX NYCTICORAX HOACTLI (Gmelin) : Black-crowned Night Heron 



Ardea Hoactli Gmelin, Systema naturae, vol. 1, pt. 2, 1789, p. 630 (Lakes of 

 Mexico ) . 

 This night heron, known as tandil, was a common inhabitant of la- 

 goons and wooded swamps and was hunted as game. In evening, 

 when the wind was from the south, I heard their calls from the lagoons 

 near the village, and often the birds passed at night over our camp. 

 They were common along the river route between Tlacotalpam and 

 Boca San Miguel. 



NYCTANASSA VIOLACEA VIOLACEA (Linnaeus): Yellow-crowned Night Heron 



Ardea violacea Linnaeus, Systema naturae, ed. 10, vol. 1, 1758, p. 143 (South 

 Carolina). 



In March and April these birds were fairly common with the other 

 night heron at lagoons near the village. 



Family COCHLEARIIDAE 



COCHLEARIUS COCHLEARIUS ZELEDONI (Ridgway) 



Cancroma zeledoni Ridgway, Proc. U. S. Nat. Mus., vol. 8, 1885, p. 98 (Mazatlfin, 

 Sinaloa). 

 The only one obtained, an immature female, was shot by Carriker's 

 helper, Modesto, along the arroyo near Hueyapa. 



Family CICONIIDAE 



MYCTERIA AMERICANA Linnaeus: Wood Ibis 



Mycteria americana Linnaeus, Systema naturae, ed. 10, vol. 1, 1758, p. 140 

 (Brazil). 



A flock was seen circling high in the air at Tlacotalpam on March 6. 



