320 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 93 



represent definitely the style of coloration recognized under the name 

 salvini and are all identified as that race. Variation among them 

 is due probably to intergradation toward rufifrom. 



Family ICTERIDAE 



GYMNOSTINOPS MONTEZUMA (Lesson) 



Cacicus Montezuma Lesson, Centurie zoologique, livr. 2, Oct. 1830, p. 33, pi. 7 

 (Mexico). 

 Carriker saw a pair near camp at Tres Zapotes late in February 

 1940, and on March 8, Modesto, his assistant, shot a male near Hueyapa. 

 The species is rare in this area. 



AMBLYCERCUS HOLOSERICEUS HOLOSERICEUS (Lichtenstein) 



Sturnus Kolosericeus Lichtenstein, Preis-Yerzeichniss inexikanischer Vogel, 1830, 

 p. 1 (Alvarado, Veracruz). 



Our series includes specimens from Tres Zapotes, March 8, 10, and 

 30, 1939, and January 26 and February 23, 1940, and from Tlacotal- 

 pam, February 6, 7, 15, and 19. Usually these birds were found in 

 heavy forest, where they were shy and difficult to see. Carriker noted 

 them more commonly at Tlacotalpam in low, tangled woodland 

 around the ponds so numerous there. In March, when the corn 

 ripened, they came into the fields from the surrounding thickets, 

 keeping under cover in the main and not flying in the open like the 

 marauding blackbirds. At any alarm they flew precipitately to heavy 

 cover. Sometimes I found small flocks resting low down in the 

 thickets bordering the milpas, singing musically, but though I heard 

 them near at hand it was difficult to see them. The natives consider 

 them destructive. Because of the light-colored bill they call them 

 pico de hueso or pico cerillo, cerillo being the common name for light- 

 colored matches made of wax. 



TANGAVIUS AENEUS AENEUS (Wagler) : Red-eyed Cowbird 



Psarocolius aeneus "Licht." Waaler, Isis von Oken, vol. 22, 1829, col. 758 (Laguua, 

 Veracruz, Mexico). 



Birds taken by Carriker at Tlacotalpam on February 15 and at 

 Tres Zapotes on March 3 are all in immature dress. On April 8, 1939, 

 I killed three adult males at the latter point and found them in partial 

 molt. Carriker saw the species at Tapacoyan. 



Red-eyed cowbirds were found in small flocks, regularly at the 

 village, and also around the lagoons. As the corn matured they 

 spread out through the fields to feed on the grain in company with 

 Cassidix, and at times I saw them in such localities in flocks. When 

 the ears were ripened the natives went into the fields to bend or break 



